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Finding the Fourth Proportional to 57,170.92, 78,901.71 and 32,972.83

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Solution

The fourth proportional to 57,170.92, 78,901.71 and 32,972.83 is: 45,505.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,170.92 : 78,901.71 = 32,972.83 : x
  2. Step 2: Convert to fraction form
    57,170.92/78,901.71 = 32,972.83/x
  3. Step 3: Cross multiply
    57,170.92x = 78,901.71 × 32,972.83
  4. Step 4: Simplify right side
    57,170.92x = 2,601,612,670.54
  5. Step 5: Solve for x
    x = 2,601,612,670.54/57,170.92
  6. Step 6: Final answer
    x = 45,505.87

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1.5x scale

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.