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Finding the Fourth Proportional to 57,977.80, 86,901.90 and 24,692.20

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Solution

The fourth proportional to 57,977.80, 86,901.90 and 24,692.20 is: 37,010.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,977.80 : 86,901.90 = 24,692.20 : x
  2. Step 2: Convert to fraction form
    57,977.80/86,901.90 = 24,692.20/x
  3. Step 3: Cross multiply
    57,977.80x = 86,901.90 × 24,692.20
  4. Step 4: Simplify right side
    57,977.80x = 2,145,799,095.18
  5. Step 5: Solve for x
    x = 2,145,799,095.18/57,977.80
  6. Step 6: Final answer
    x = 37,010.70

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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.