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Finding the Fourth Proportional to 5,073.36, 7,002.72 and 3,211.44

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Solution

The fourth proportional to 5,073.36, 7,002.72 and 3,211.44 is: 4,432.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,073.36 : 7,002.72 = 3,211.44 : x
  2. Step 2: Convert to fraction form
    5,073.36/7,002.72 = 3,211.44/x
  3. Step 3: Cross multiply
    5,073.36x = 7,002.72 × 3,211.44
  4. Step 4: Simplify right side
    5,073.36x = 22,488,815.12
  5. Step 5: Solve for x
    x = 22,488,815.12/5,073.36
  6. Step 6: Final answer
    x = 4,432.73

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.