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Finding the Fourth Proportional to 5,732.89, 7,911.10 and 3,374.88

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Solution

The fourth proportional to 5,732.89, 7,911.10 and 3,374.88 is: 4,657.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,732.89 : 7,911.10 = 3,374.88 : x
  2. Step 2: Convert to fraction form
    5,732.89/7,911.10 = 3,374.88/x
  3. Step 3: Cross multiply
    5,732.89x = 7,911.10 × 3,374.88
  4. Step 4: Simplify right side
    5,732.89x = 26,699,013.17
  5. Step 5: Solve for x
    x = 26,699,013.17/5,732.89
  6. Step 6: Final answer
    x = 4,657.16

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Why These Related Problems?

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