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Finding the Third Proportional to 47,843 and 71,217

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Solution

The third proportional to 47,843 and 71,217 is: 106,010.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,843 : 71,217 = 71,217 : x
  2. Step 2: Convert to fraction form
    47,843/71,217 = 71,217/x
  3. Step 3: Cross multiply
    47,843x = 71,217 × 71,217
  4. Step 4: Simplify right side
    47,843x = 5,071,861,089
  5. Step 5: Solve for x
    x = 5,071,861,089/47,843
  6. Step 6: Final answer
    x = 106,010.52

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.