 | Richard W. Hadden - 1994 - 214 σελίδες
...most of the problems the student would likely encounter in his life. It is based on the principle that the product of the means equals the product of the extremes in a simple proportion of the form a/b = c/d, so that given three terms it is possible to find the fourth... | |
 | Haym Kruglak, John Moore, Ramon Mata-Toledo - 1998 - 508 σελίδες
...equation for P: — = • 50 P -15 21 (P — 15) = 50 • 16 since the given equation may be regarded as a proportion, the product of the means equals the product of the extremes 21 • P - 2 1 • 15 = 50- 16 remove parentheses 21 P -3 15 = 800 simplify 21P=800 + 315 = 1115 transpose... | |
 | Springhouse - 2002 - 322 σελίδες
...end numbers are called the extremes, and the inner or middle numbers are called the means. In such a proportion, the product of the means equals the product of the extremes. In this case, 1 X 20 = 4 X 5 This principle lets you solve for any of four unknown parts in a proportion.... | |
 | James T. Glover - 2001 - 304 σελίδες
...ratio equation cannot be solved By Inspection then we can use the general method. This uses the sutra. The product of the means equals the product of the extremes. In a proportion, by the word means is meant the middle two numbers and by the word extremes is meant the... | |
 | David S. Kahn, Princeton Review (Firm) - 2003 - 319 σελίδες
...angles are congruent. 4. AA = AA 5. Corresponding sides of similar triangles are in proportion. 6. In a proportion, the product of the means equals the product of the extremes. [5] AA£D and ACE5 are correctly proved to be similar, and the appropriate proportion is written with... | |
 | Instructivision, Incorporated - 2005 - 156 σελίδες
...addition or multiplication. 2. The average is the sum of the terms divided by the number of terms. 3. In a proportion, the product of the means equals the product of the extremes. 4. In following the order of operations do all work within the parentheses and then find the powers... | |
 | Boyce P. Wanamaker, Kathy Lockett Massey - 2009 - 505 σελίδες
...and 1) are called the means, and the two outer numbers (8 and 2) are called the extremes. In a true proportion, the product of the means equals the product of the extremes (16 X 1 = 16; 8X2 = 16). This fact makes the proportion a useful mathematical tool. When a part of... | |
 | 1981 - 574 σελίδες
...ends) are called the extremes. The second and third terms (middle terms) are called the means. In a proportion, the product of the means equals the product of the extremes; therefore, when three terms are known, the fourth (or unknown) term may be determined. Application... | |
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In any proportion, the product of the means equals the product of the extremes. 
