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Finding the Fourth Proportional to 18,480.44, 27,741.38 and 7,394.85

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Solution

The fourth proportional to 18,480.44, 27,741.38 and 7,394.85 is: 11,100.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,480.44 : 27,741.38 = 7,394.85 : x
  2. Step 2: Convert to fraction form
    18,480.44/27,741.38 = 7,394.85/x
  3. Step 3: Cross multiply
    18,480.44x = 27,741.38 × 7,394.85
  4. Step 4: Simplify right side
    18,480.44x = 205,143,306.92
  5. Step 5: Solve for x
    x = 205,143,306.92/18,480.44
  6. Step 6: Final answer
    x = 11,100.57

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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.