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Finding the Fourth Proportional to 57,972.20, 80,009.05 and 34,101.10

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Solution

The fourth proportional to 57,972.20, 80,009.05 and 34,101.10 is: 47,063.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,972.20 : 80,009.05 = 34,101.10 : x
  2. Step 2: Convert to fraction form
    57,972.20/80,009.05 = 34,101.10/x
  3. Step 3: Cross multiply
    57,972.20x = 80,009.05 × 34,101.10
  4. Step 4: Simplify right side
    57,972.20x = 2,728,396,214.91
  5. Step 5: Solve for x
    x = 2,728,396,214.91/57,972.20
  6. Step 6: Final answer
    x = 47,063.87

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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.