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Finding the Fourth Proportional to 16,169.60, 24,237.60 and 7,837.28

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Solution

The fourth proportional to 16,169.60, 24,237.60 and 7,837.28 is: 11,747.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,169.60 : 24,237.60 = 7,837.28 : x
  2. Step 2: Convert to fraction form
    16,169.60/24,237.60 = 7,837.28/x
  3. Step 3: Cross multiply
    16,169.60x = 24,237.60 × 7,837.28
  4. Step 4: Simplify right side
    16,169.60x = 189,956,857.73
  5. Step 5: Solve for x
    x = 189,956,857.73/16,169.60
  6. Step 6: Final answer
    x = 11,747.78

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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.