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  • 27-05-2014
  • Mathematics
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Find geometric mean between 3 and 6

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kate200468
kate200468 kate200468
  • 27-05-2014
[tex] geometric\ mean\ between \ a\ and\ b\ = \sqrt{a\cdot b} \\----------------------\\\\geometric\ mean= \sqrt{3\cdot6} = \sqrt{3\cdot3\cdot2} =3\cdot \sqrt{2} [/tex]
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AL2006
AL2006 AL2006
  • 27-05-2014
Call the geometric mean ' G '.

Then (3 / G) = (G / 6)

This is a proportion, and may be "cross-multiplied":

G² = 18

G = √18 = about 4.2426... (rounded)
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