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Finding the Fourth Proportional to 57,760.92, 86,662.85 and 35,317.64

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Solution

The fourth proportional to 57,760.92, 86,662.85 and 35,317.64 is: 52,989.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,760.92 : 86,662.85 = 35,317.64 : x
  2. Step 2: Convert to fraction form
    57,760.92/86,662.85 = 35,317.64/x
  3. Step 3: Cross multiply
    57,760.92x = 86,662.85 × 35,317.64
  4. Step 4: Simplify right side
    57,760.92x = 3,060,727,377.74
  5. Step 5: Solve for x
    x = 3,060,727,377.74/57,760.92
  6. Step 6: Final answer
    x = 52,989.59

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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.