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Finding the Fourth Proportional to 7,375.86, 11,061.90 and 2,180.52

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Solution

The fourth proportional to 7,375.86, 11,061.90 and 2,180.52 is: 3,270.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,375.86 : 11,061.90 = 2,180.52 : x
  2. Step 2: Convert to fraction form
    7,375.86/11,061.90 = 2,180.52/x
  3. Step 3: Cross multiply
    7,375.86x = 11,061.90 × 2,180.52
  4. Step 4: Simplify right side
    7,375.86x = 24,120,694.19
  5. Step 5: Solve for x
    x = 24,120,694.19/7,375.86
  6. Step 6: Final answer
    x = 3,270.22

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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.