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Finding the Fourth Proportional to 8,651.52, 12,972.63 and 2,727.30

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Solution

The fourth proportional to 8,651.52, 12,972.63 and 2,727.30 is: 4,089.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,651.52 : 12,972.63 = 2,727.30 : x
  2. Step 2: Convert to fraction form
    8,651.52/12,972.63 = 2,727.30/x
  3. Step 3: Cross multiply
    8,651.52x = 12,972.63 × 2,727.30
  4. Step 4: Simplify right side
    8,651.52x = 35,380,253.80
  5. Step 5: Solve for x
    x = 35,380,253.80/8,651.52
  6. Step 6: Final answer
    x = 4,089.48

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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.