Relationship of circles and polygons

It's important to get the CORRESPONDING SIDES together. The sides OX and OY are corresponding because they are both opposite the right angles, so they need to go together in a fraction.
 
Once I've got the order correct ie POX matches up with QOY (matching their angles), then it's just a matter of pulling out letters 1&2, ie PO and QO, and then letters 2&3 ie OX and OY, and then letters 1&3. That's the easiest way.
 
Once I've got the order correct ie POX matches up with QOY (matching their angles), then it's just a matter of pulling out letters 1&2, ie PO and QO, and then letters 2&3 ie OX and OY, and then letters 1&3. That's the easiest way.
to get their equivalent?
 
Can you rearrange the statement \(\displaystyle \frac{PO}{QO}=\frac{PX}{QY}\) to get rid of fractions?
 
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