## Geometry: Common Core (15th Edition)

Published by Prentice Hall

# Chapter 7 - Similarity - 7-1 Ratios and Proportions - Practice and Problem-Solving Exercises: 21

32

#### Work Step by Step

Given $\frac{9}{24}$=$\frac{12}{n}$ Cross multiply 9n=24(12) 9n=288 n=32

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