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Finding the Fourth Proportional to 66,507.20, 99,775.20 and 24,385.52

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Solution

The fourth proportional to 66,507.20, 99,775.20 and 24,385.52 is: 36,583.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,507.20 : 99,775.20 = 24,385.52 : x
  2. Step 2: Convert to fraction form
    66,507.20/99,775.20 = 24,385.52/x
  3. Step 3: Cross multiply
    66,507.20x = 99,775.20 × 24,385.52
  4. Step 4: Simplify right side
    66,507.20x = 2,433,070,135.10
  5. Step 5: Solve for x
    x = 2,433,070,135.10/66,507.20
  6. Step 6: Final answer
    x = 36,583.56

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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.