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Finding the Fourth Proportional to 57,231.70, 85,847.55 and 29,238.10

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Solution

The fourth proportional to 57,231.70, 85,847.55 and 29,238.10 is: 43,857.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,231.70 : 85,847.55 = 29,238.10 : x
  2. Step 2: Convert to fraction form
    57,231.70/85,847.55 = 29,238.10/x
  3. Step 3: Cross multiply
    57,231.70x = 85,847.55 × 29,238.10
  4. Step 4: Simplify right side
    57,231.70x = 2,510,019,251.66
  5. Step 5: Solve for x
    x = 2,510,019,251.66/57,231.70
  6. Step 6: Final answer
    x = 43,857.15

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1.5x scale

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.