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Finding the Fourth Proportional to 8,586.92, 12,882.36 and 2,743.52

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Solution

The fourth proportional to 8,586.92, 12,882.36 and 2,743.52 is: 4,115.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,586.92 : 12,882.36 = 2,743.52 : x
  2. Step 2: Convert to fraction form
    8,586.92/12,882.36 = 2,743.52/x
  3. Step 3: Cross multiply
    8,586.92x = 12,882.36 × 2,743.52
  4. Step 4: Simplify right side
    8,586.92x = 35,343,012.31
  5. Step 5: Solve for x
    x = 35,343,012.31/8,586.92
  6. Step 6: Final answer
    x = 4,115.91

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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.