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Finding the Fourth Proportional to 5,687.52, 7,848.90 and 3,169.88

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Solution

The fourth proportional to 5,687.52, 7,848.90 and 3,169.88 is: 4,374.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,687.52 : 7,848.90 = 3,169.88 : x
  2. Step 2: Convert to fraction form
    5,687.52/7,848.90 = 3,169.88/x
  3. Step 3: Cross multiply
    5,687.52x = 7,848.90 × 3,169.88
  4. Step 4: Simplify right side
    5,687.52x = 24,880,105.47
  5. Step 5: Solve for x
    x = 24,880,105.47/5,687.52
  6. Step 6: Final answer
    x = 4,374.51

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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.