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Finding the Third Proportional to 49,903 and 75,372

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Solution

The third proportional to 49,903 and 75,372 is: 113,839.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,903 : 75,372 = 75,372 : x
  2. Step 2: Convert to fraction form
    49,903/75,372 = 75,372/x
  3. Step 3: Cross multiply
    49,903x = 75,372 × 75,372
  4. Step 4: Simplify right side
    49,903x = 5,680,938,384
  5. Step 5: Solve for x
    x = 5,680,938,384/49,903
  6. Step 6: Final answer
    x = 113,839.62

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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.