Answer
$x = 3\sqrt 2$ or $-3\sqrt 2$
Work Step by Step
$\frac{x}{6} = \frac{3}{x}$
$x^{2} = 18$
$x = \sqrt {18}$ or $-\sqrt {18}$
$x = 3\sqrt 2$ or $-3\sqrt 2$
Elementary Geometry for College Students (7th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Cengage
ISBN 10:
978-1-337-61408-5
ISBN 13:
978-1-33761-408-5
Chapter 5 - Section 5.1 - Ratios, Rates, and Proportions - Exercises - Page 228: 9b
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