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Finding the Third Proportional to 12,638 and 29,534

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Solution

The third proportional to 12,638 and 29,534 is: 69,018.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,638 : 29,534 = 29,534 : x
  2. Step 2: Convert to fraction form
    12,638/29,534 = 29,534/x
  3. Step 3: Cross multiply
    12,638x = 29,534 × 29,534
  4. Step 4: Simplify right side
    12,638x = 872,257,156
  5. Step 5: Solve for x
    x = 872,257,156/12,638
  6. Step 6: Final answer
    x = 69,018.61

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.