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Finding the Fourth Proportional to 67,043.34, 100,575.90 and 22,672.80

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Solution

The fourth proportional to 67,043.34, 100,575.90 and 22,672.80 is: 34,012.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,043.34 : 100,575.90 = 22,672.80 : x
  2. Step 2: Convert to fraction form
    67,043.34/100,575.90 = 22,672.80/x
  3. Step 3: Cross multiply
    67,043.34x = 100,575.90 × 22,672.80
  4. Step 4: Simplify right side
    67,043.34x = 2,280,337,265.52
  5. Step 5: Solve for x
    x = 2,280,337,265.52/67,043.34
  6. Step 6: Final answer
    x = 34,012.88

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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.