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Finding the Fourth Proportional to 67,248.62, 100,782.21 and 25,672.94

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Solution

The fourth proportional to 67,248.62, 100,782.21 and 25,672.94 is: 38,474.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,248.62 : 100,782.21 = 25,672.94 : x
  2. Step 2: Convert to fraction form
    67,248.62/100,782.21 = 25,672.94/x
  3. Step 3: Cross multiply
    67,248.62x = 100,782.21 × 25,672.94
  4. Step 4: Simplify right side
    67,248.62x = 2,587,375,630.40
  5. Step 5: Solve for x
    x = 2,587,375,630.40/67,248.62
  6. Step 6: Final answer
    x = 38,474.78

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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.