Finding the Third Proportional to 20,857 and 30,732
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Solution
The third proportional to 20,857 and 30,732 is: 45,282.44
Step by Step Solution
- Step 1: Write the proportion equation
20,857 : 30,732 = 30,732 : x - Step 2: Convert to fraction form
20,857/30,732 = 30,732/x - Step 3: Cross multiply
20,857x = 30,732 × 30,732 - Step 4: Simplify right side
20,857x = 944,455,824 - Step 5: Solve for x
x = 944,455,824/20,857 - Step 6: Final answer
x = 45,282.44
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Why These Related Problems?
These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.