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January 29, 2015

January 29, 2015

Posted by **Anonymous** on Monday, November 21, 2011 at 3:01pm.

- geometry -
**Reiny**, Monday, November 21, 2011 at 3:05pmto be a geometric mean,

75/x = x/27

x^2 = 75*27 = 2025

x = ±√2025 = ± 45

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