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Finding the Fourth Proportional to 71,760.56, 107,641.24 and 25,013.20

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Solution

The fourth proportional to 71,760.56, 107,641.24 and 25,013.20 is: 37,519.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,760.56 : 107,641.24 = 25,013.20 : x
  2. Step 2: Convert to fraction form
    71,760.56/107,641.24 = 25,013.20/x
  3. Step 3: Cross multiply
    71,760.56x = 107,641.24 × 25,013.20
  4. Step 4: Simplify right side
    71,760.56x = 2,692,451,864.37
  5. Step 5: Solve for x
    x = 2,692,451,864.37/71,760.56
  6. Step 6: Final answer
    x = 37,519.94

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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.