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Finding the Fourth Proportional to 57,866.10, 79,869.15 and 36,368.70

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Solution

The fourth proportional to 57,866.10, 79,869.15 and 36,368.70 is: 50,197.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,866.10 : 79,869.15 = 36,368.70 : x
  2. Step 2: Convert to fraction form
    57,866.10/79,869.15 = 36,368.70/x
  3. Step 3: Cross multiply
    57,866.10x = 79,869.15 × 36,368.70
  4. Step 4: Simplify right side
    57,866.10x = 2,904,737,155.61
  5. Step 5: Solve for x
    x = 2,904,737,155.61/57,866.10
  6. Step 6: Final answer
    x = 50,197.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.