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Finding the Third Proportional to 38,890 and 60,331

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Solution

The third proportional to 38,890 and 60,331 is: 93,592.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,890 : 60,331 = 60,331 : x
  2. Step 2: Convert to fraction form
    38,890/60,331 = 60,331/x
  3. Step 3: Cross multiply
    38,890x = 60,331 × 60,331
  4. Step 4: Simplify right side
    38,890x = 3,639,829,561
  5. Step 5: Solve for x
    x = 3,639,829,561/38,890
  6. Step 6: Final answer
    x = 93,592.94

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.