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Finding the Fourth Proportional to 8,588.92, 12,884.34 and 2,744.20

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Solution

The fourth proportional to 8,588.92, 12,884.34 and 2,744.20 is: 4,116.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,588.92 : 12,884.34 = 2,744.20 : x
  2. Step 2: Convert to fraction form
    8,588.92/12,884.34 = 2,744.20/x
  3. Step 3: Cross multiply
    8,588.92x = 12,884.34 × 2,744.20
  4. Step 4: Simplify right side
    8,588.92x = 35,357,205.83
  5. Step 5: Solve for x
    x = 35,357,205.83/8,588.92
  6. Step 6: Final answer
    x = 4,116.61

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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.