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Finding the Fourth Proportional to 18,359.33, 27,542.52 and 7,829.15

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Solution

The fourth proportional to 18,359.33, 27,542.52 and 7,829.15 is: 11,745.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,359.33 : 27,542.52 = 7,829.15 : x
  2. Step 2: Convert to fraction form
    18,359.33/27,542.52 = 7,829.15/x
  3. Step 3: Cross multiply
    18,359.33x = 27,542.52 × 7,829.15
  4. Step 4: Simplify right side
    18,359.33x = 215,634,382.75
  5. Step 5: Solve for x
    x = 215,634,382.75/18,359.33
  6. Step 6: Final answer
    x = 11,745.22

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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.