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Finding the Third Proportional to 21,694 and 47,542

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Solution

The third proportional to 21,694 and 47,542 is: 104,187.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,694 : 47,542 = 47,542 : x
  2. Step 2: Convert to fraction form
    21,694/47,542 = 47,542/x
  3. Step 3: Cross multiply
    21,694x = 47,542 × 47,542
  4. Step 4: Simplify right side
    21,694x = 2,260,241,764
  5. Step 5: Solve for x
    x = 2,260,241,764/21,694
  6. Step 6: Final answer
    x = 104,187.41

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.