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Finding the Fourth Proportional to 8,651.75, 12,979.25 and 4,034.75

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Solution

The fourth proportional to 8,651.75, 12,979.25 and 4,034.75 is: 6,052.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,651.75 : 12,979.25 = 4,034.75 : x
  2. Step 2: Convert to fraction form
    8,651.75/12,979.25 = 4,034.75/x
  3. Step 3: Cross multiply
    8,651.75x = 12,979.25 × 4,034.75
  4. Step 4: Simplify right side
    8,651.75x = 52,368,008.76
  5. Step 5: Solve for x
    x = 52,368,008.76/8,651.75
  6. Step 6: Final answer
    x = 6,052.88

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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.