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Finding the Fourth Proportional to 57,403.20, 85,951.20 and 36,513.60

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Solution

The fourth proportional to 57,403.20, 85,951.20 and 36,513.60 is: 54,672.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,403.20 : 85,951.20 = 36,513.60 : x
  2. Step 2: Convert to fraction form
    57,403.20/85,951.20 = 36,513.60/x
  3. Step 3: Cross multiply
    57,403.20x = 85,951.20 × 36,513.60
  4. Step 4: Simplify right side
    57,403.20x = 3,138,387,736.32
  5. Step 5: Solve for x
    x = 3,138,387,736.32/57,403.20
  6. Step 6: Final answer
    x = 54,672.70

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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.