Use ratio of side lengths to find missing side

The ratio of side lengths for a triangle is exactly 7:11:13. In a second triangle, similar to the first, the shortest side is 9 inches long. To the nearest tenth of an inch, what is the length of the longest side of the triangle?
A.) 14.1
B.) 15
C.) 16.7
D.) 17.3
E.) Cannot be determined from the given information

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