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Finding the Fourth Proportional to 67,402.17, 101,105.85 and 17,480.97

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Solution

The fourth proportional to 67,402.17, 101,105.85 and 17,480.97 is: 26,222.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,402.17 : 101,105.85 = 17,480.97 : x
  2. Step 2: Convert to fraction form
    67,402.17/101,105.85 = 17,480.97/x
  3. Step 3: Cross multiply
    67,402.17x = 101,105.85 × 17,480.97
  4. Step 4: Simplify right side
    67,402.17x = 1,767,428,330.67
  5. Step 5: Solve for x
    x = 1,767,428,330.67/67,402.17
  6. Step 6: Final answer
    x = 26,222.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.