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Finding the Fourth Proportional to 38,487.40, 57,633.90 and 36,737.80

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Solution

The fourth proportional to 38,487.40, 57,633.90 and 36,737.80 is: 55,013.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,487.40 : 57,633.90 = 36,737.80 : x
  2. Step 2: Convert to fraction form
    38,487.40/57,633.90 = 36,737.80/x
  3. Step 3: Cross multiply
    38,487.40x = 57,633.90 × 36,737.80
  4. Step 4: Simplify right side
    38,487.40x = 2,117,342,691.42
  5. Step 5: Solve for x
    x = 2,117,342,691.42/38,487.40
  6. Step 6: Final answer
    x = 55,013.92

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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.