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Finding the Fourth Proportional to 8,663.52, 12,997.20 and 2,508

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Solution

The fourth proportional to 8,663.52, 12,997.20 and 2,508 is: 3,762.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,663.52 : 12,997.20 = 2,508 : x
  2. Step 2: Convert to fraction form
    8,663.52/12,997.20 = 2,508/x
  3. Step 3: Cross multiply
    8,663.52x = 12,997.20 × 2,508
  4. Step 4: Simplify right side
    8,663.52x = 32,596,977.60
  5. Step 5: Solve for x
    x = 32,596,977.60/8,663.52
  6. Step 6: Final answer
    x = 3,762.56

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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.