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Finding the Fourth Proportional to 71,462.52, 107,202.24 and 18,872.46

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Solution

The fourth proportional to 71,462.52, 107,202.24 and 18,872.46 is: 28,310.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,462.52 : 107,202.24 = 18,872.46 : x
  2. Step 2: Convert to fraction form
    71,462.52/107,202.24 = 18,872.46/x
  3. Step 3: Cross multiply
    71,462.52x = 107,202.24 × 18,872.46
  4. Step 4: Simplify right side
    71,462.52x = 2,023,169,986.31
  5. Step 5: Solve for x
    x = 2,023,169,986.31/71,462.52
  6. Step 6: Final answer
    x = 28,310.92

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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.