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Finding the Fourth Proportional to 3,620.82, 5,422.04 and 3,034.28

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Solution

The fourth proportional to 3,620.82, 5,422.04 and 3,034.28 is: 4,543.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,620.82 : 5,422.04 = 3,034.28 : x
  2. Step 2: Convert to fraction form
    3,620.82/5,422.04 = 3,034.28/x
  3. Step 3: Cross multiply
    3,620.82x = 5,422.04 × 3,034.28
  4. Step 4: Simplify right side
    3,620.82x = 16,451,945.25
  5. Step 5: Solve for x
    x = 16,451,945.25/3,620.82
  6. Step 6: Final answer
    x = 4,543.71

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.