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Finding the Fourth Proportional to 57,711.68, 86,612.88 and 29,630.60

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Solution

The fourth proportional to 57,711.68, 86,612.88 and 29,630.60 is: 44,469.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,711.68 : 86,612.88 = 29,630.60 : x
  2. Step 2: Convert to fraction form
    57,711.68/86,612.88 = 29,630.60/x
  3. Step 3: Cross multiply
    57,711.68x = 86,612.88 × 29,630.60
  4. Step 4: Simplify right side
    57,711.68x = 2,566,391,602.13
  5. Step 5: Solve for x
    x = 2,566,391,602.13/57,711.68
  6. Step 6: Final answer
    x = 44,469.19

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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.