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Finding the Fourth Proportional to 16,663.89, 24,974.37 and 7,879.44

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Solution

The fourth proportional to 16,663.89, 24,974.37 and 7,879.44 is: 11,809.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,663.89 : 24,974.37 = 7,879.44 : x
  2. Step 2: Convert to fraction form
    16,663.89/24,974.37 = 7,879.44/x
  3. Step 3: Cross multiply
    16,663.89x = 24,974.37 × 7,879.44
  4. Step 4: Simplify right side
    16,663.89x = 196,784,049.95
  5. Step 5: Solve for x
    x = 196,784,049.95/16,663.89
  6. Step 6: Final answer
    x = 11,809.01

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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.