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Finding the Fourth Proportional to 18,791.14, 25,949.01 and 12,092.44

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Solution

The fourth proportional to 18,791.14, 25,949.01 and 12,092.44 is: 16,698.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,791.14 : 25,949.01 = 12,092.44 : x
  2. Step 2: Convert to fraction form
    18,791.14/25,949.01 = 12,092.44/x
  3. Step 3: Cross multiply
    18,791.14x = 25,949.01 × 12,092.44
  4. Step 4: Simplify right side
    18,791.14x = 313,786,846.48
  5. Step 5: Solve for x
    x = 313,786,846.48/18,791.14
  6. Step 6: Final answer
    x = 16,698.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.