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Finding the Fourth Proportional to 18,045, 27,067.66 and 7,101

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Solution

The fourth proportional to 18,045, 27,067.66 and 7,101 is: 10,651.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,045 : 27,067.66 = 7,101 : x
  2. Step 2: Convert to fraction form
    18,045/27,067.66 = 7,101/x
  3. Step 3: Cross multiply
    18,045x = 27,067.66 × 7,101
  4. Step 4: Simplify right side
    18,045x = 192,207,453.66
  5. Step 5: Solve for x
    x = 192,207,453.66/18,045
  6. Step 6: Final answer
    x = 10,651.56

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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.