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Finding the Fourth Proportional to 2,474.72, 3,717.20 and 2,391.68

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Solution

The fourth proportional to 2,474.72, 3,717.20 and 2,391.68 is: 3,592.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,474.72 : 3,717.20 = 2,391.68 : x
  2. Step 2: Convert to fraction form
    2,474.72/3,717.20 = 2,391.68/x
  3. Step 3: Cross multiply
    2,474.72x = 3,717.20 × 2,391.68
  4. Step 4: Simplify right side
    2,474.72x = 8,890,334.31
  5. Step 5: Solve for x
    x = 8,890,334.31/2,474.72
  6. Step 6: Final answer
    x = 3,592.47

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Why These Related Problems?

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