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Finding the Fourth Proportional to 71,937.40, 107,902.12 and 22,017.46

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Solution

The fourth proportional to 71,937.40, 107,902.12 and 22,017.46 is: 33,024.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,937.40 : 107,902.12 = 22,017.46 : x
  2. Step 2: Convert to fraction form
    71,937.40/107,902.12 = 22,017.46/x
  3. Step 3: Cross multiply
    71,937.40x = 107,902.12 × 22,017.46
  4. Step 4: Simplify right side
    71,937.40x = 2,375,730,611.02
  5. Step 5: Solve for x
    x = 2,375,730,611.02/71,937.40
  6. Step 6: Final answer
    x = 33,024.97

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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.