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Finding the Fourth Proportional to 8,375.44, 12,565.20 and 2,531.68

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Solution

The fourth proportional to 8,375.44, 12,565.20 and 2,531.68 is: 3,798.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,375.44 : 12,565.20 = 2,531.68 : x
  2. Step 2: Convert to fraction form
    8,375.44/12,565.20 = 2,531.68/x
  3. Step 3: Cross multiply
    8,375.44x = 12,565.20 × 2,531.68
  4. Step 4: Simplify right side
    8,375.44x = 31,811,065.54
  5. Step 5: Solve for x
    x = 31,811,065.54/8,375.44
  6. Step 6: Final answer
    x = 3,798.14

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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.