Finding the Third Proportional to 64 and 66
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Solution
The third proportional to 64 and 66 is: 68.06
Step by Step Solution
- Step 1: Write the proportion equation
64 : 66 = 66 : x - Step 2: Convert to fraction form
64/66 = 66/x - Step 3: Cross multiply
64x = 66 × 66 - Step 4: Simplify right side
64x = 4,356 - Step 5: Solve for x
x = 4,356/64 - Step 6: Final answer
x = 68.06
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Why These Related Problems?
These problems maintain the same ratio (1.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.