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Finding the Fourth Proportional to 57,787.64, 79,757.46 and 33,591.92

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Solution

The fourth proportional to 57,787.64, 79,757.46 and 33,591.92 is: 46,362.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,787.64 : 79,757.46 = 33,591.92 : x
  2. Step 2: Convert to fraction form
    57,787.64/79,757.46 = 33,591.92/x
  3. Step 3: Cross multiply
    57,787.64x = 79,757.46 × 33,591.92
  4. Step 4: Simplify right side
    57,787.64x = 2,679,206,215.72
  5. Step 5: Solve for x
    x = 2,679,206,215.72/57,787.64
  6. Step 6: Final answer
    x = 46,362.96

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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.