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Finding the Third Proportional to 31,592 and 47,631

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Solution

The third proportional to 31,592 and 47,631 is: 71,812.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,592 : 47,631 = 47,631 : x
  2. Step 2: Convert to fraction form
    31,592/47,631 = 47,631/x
  3. Step 3: Cross multiply
    31,592x = 47,631 × 47,631
  4. Step 4: Simplify right side
    31,592x = 2,268,712,161
  5. Step 5: Solve for x
    x = 2,268,712,161/31,592
  6. Step 6: Final answer
    x = 71,812.87

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.