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Finding the Fourth Proportional to 66,517.60, 99,793.68 and 33,236.32

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Solution

The fourth proportional to 66,517.60, 99,793.68 and 33,236.32 is: 49,863.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,517.60 : 99,793.68 = 33,236.32 : x
  2. Step 2: Convert to fraction form
    66,517.60/99,793.68 = 33,236.32/x
  3. Step 3: Cross multiply
    66,517.60x = 99,793.68 × 33,236.32
  4. Step 4: Simplify right side
    66,517.60x = 3,316,774,183.49
  5. Step 5: Solve for x
    x = 3,316,774,183.49/66,517.60
  6. Step 6: Final answer
    x = 49,863.11

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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.