Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10:
ISBN 13:

Chapter 5 - Ratio and Proportion - 5.4 Solving Problems - 5.4 Exercises - Page 356: 8

Answer

$x=6$

Work Step by Step

We are given the proportion $\frac{12}{9}=\frac{8}{x}$. We can set the cross products equal to each other and solve for the unknown variable. $12\times x=9\times8$ $12x=72$ Divide both sides by 12. $x=6$
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