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Finding the Fourth Proportional to 5,732.48, 7,910.88 and 3,214.68

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Solution

The fourth proportional to 5,732.48, 7,910.88 and 3,214.68 is: 4,436.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,732.48 : 7,910.88 = 3,214.68 : x
  2. Step 2: Convert to fraction form
    5,732.48/7,910.88 = 3,214.68/x
  3. Step 3: Cross multiply
    5,732.48x = 7,910.88 × 3,214.68
  4. Step 4: Simplify right side
    5,732.48x = 25,430,947.72
  5. Step 5: Solve for x
    x = 25,430,947.72/5,732.48
  6. Step 6: Final answer
    x = 4,436.29

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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.