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Finding the Fourth Proportional to 57,073.30, 85,630.14 and 25,480.42

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Solution

The fourth proportional to 57,073.30, 85,630.14 and 25,480.42 is: 38,229.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,073.30 : 85,630.14 = 25,480.42 : x
  2. Step 2: Convert to fraction form
    57,073.30/85,630.14 = 25,480.42/x
  3. Step 3: Cross multiply
    57,073.30x = 85,630.14 × 25,480.42
  4. Step 4: Simplify right side
    57,073.30x = 2,181,891,931.86
  5. Step 5: Solve for x
    x = 2,181,891,931.86/57,073.30
  6. Step 6: Final answer
    x = 38,229.64

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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.