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Finding the Fourth Proportional to 11,248.60, 16,872.90 and 3,850.60

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Solution

The fourth proportional to 11,248.60, 16,872.90 and 3,850.60 is: 5,775.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,248.60 : 16,872.90 = 3,850.60 : x
  2. Step 2: Convert to fraction form
    11,248.60/16,872.90 = 3,850.60/x
  3. Step 3: Cross multiply
    11,248.60x = 16,872.90 × 3,850.60
  4. Step 4: Simplify right side
    11,248.60x = 64,970,788.74
  5. Step 5: Solve for x
    x = 64,970,788.74/11,248.60
  6. Step 6: Final answer
    x = 5,775.90

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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.