Answer
$\frac{36}{5}$
Work Step by Step
Gien $\frac{4}{x}$=$\frac{5}{9}$
Cross multiply.
5x=4(9)
5x=36
x=$\frac{36}{5}$
Geometry: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281159
ISBN 13:
978-0-13328-115-6
Chapter 7 - Similarity - 7-1 Ratios and Proportions - Practice and Problem-Solving Exercises - Page 436: 19
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