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OpenStudy (anonymous):
What is the geometric mean in these proportions 1/5=5/25 2/8=8/32
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Directrix (directrix):
The Geometric Mean is sometimes called the mean proportional.
Directrix (directrix):
@rengirl
OpenStudy (anonymous):
Do I have to divide to find the answer
Directrix (directrix):
@rengirl No. Look at the attachment and observe that the geometric mean is used twice in the proportion. Notice the placement of the number used twice. To help you get started, 5 is the geometric mean in 1/5=5/25. |dw:1446516858762:dw|
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