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Finding the Fourth Proportional to 40,245.20, 60,432.60 and 29,229.20

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Solution

The fourth proportional to 40,245.20, 60,432.60 and 29,229.20 is: 43,890.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,245.20 : 60,432.60 = 29,229.20 : x
  2. Step 2: Convert to fraction form
    40,245.20/60,432.60 = 29,229.20/x
  3. Step 3: Cross multiply
    40,245.20x = 60,432.60 × 29,229.20
  4. Step 4: Simplify right side
    40,245.20x = 1,766,396,551.92
  5. Step 5: Solve for x
    x = 1,766,396,551.92/40,245.20
  6. Step 6: Final answer
    x = 43,890.86

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1.5x scale

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.