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Finding the Third Proportional to 12,134 and 22,720

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Solution

The third proportional to 12,134 and 22,720 is: 42,541.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,134 : 22,720 = 22,720 : x
  2. Step 2: Convert to fraction form
    12,134/22,720 = 22,720/x
  3. Step 3: Cross multiply
    12,134x = 22,720 × 22,720
  4. Step 4: Simplify right side
    12,134x = 516,198,400
  5. Step 5: Solve for x
    x = 516,198,400/12,134
  6. Step 6: Final answer
    x = 42,541.49

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Why These Related Problems?

These problems maintain the same ratio (1.87) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.