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Finding the Fourth Proportional to 8,262.62, 12,388.55 and 2,996.65

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Solution

The fourth proportional to 8,262.62, 12,388.55 and 2,996.65 is: 4,493.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,262.62 : 12,388.55 = 2,996.65 : x
  2. Step 2: Convert to fraction form
    8,262.62/12,388.55 = 2,996.65/x
  3. Step 3: Cross multiply
    8,262.62x = 12,388.55 × 2,996.65
  4. Step 4: Simplify right side
    8,262.62x = 37,124,160.10
  5. Step 5: Solve for x
    x = 37,124,160.10/8,262.62
  6. Step 6: Final answer
    x = 4,493.02

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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.