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Finding the Third Proportional to 40,331 and 63,845

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Solution

The third proportional to 40,331 and 63,845 is: 101,068.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,331 : 63,845 = 63,845 : x
  2. Step 2: Convert to fraction form
    40,331/63,845 = 63,845/x
  3. Step 3: Cross multiply
    40,331x = 63,845 × 63,845
  4. Step 4: Simplify right side
    40,331x = 4,076,184,025
  5. Step 5: Solve for x
    x = 4,076,184,025/40,331
  6. Step 6: Final answer
    x = 101,068.26

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.