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Finding the Fourth Proportional to 25,122.88, 37,657.86 and 8,467.12

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Solution

The fourth proportional to 25,122.88, 37,657.86 and 8,467.12 is: 12,691.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,122.88 : 37,657.86 = 8,467.12 : x
  2. Step 2: Convert to fraction form
    25,122.88/37,657.86 = 8,467.12/x
  3. Step 3: Cross multiply
    25,122.88x = 37,657.86 × 8,467.12
  4. Step 4: Simplify right side
    25,122.88x = 318,853,619.56
  5. Step 5: Solve for x
    x = 318,853,619.56/25,122.88
  6. Step 6: Final answer
    x = 12,691.76

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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.