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Finding the Fourth Proportional to 4,169.28, 5,754 and 2,401.92

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Solution

The fourth proportional to 4,169.28, 5,754 and 2,401.92 is: 3,314.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,169.28 : 5,754 = 2,401.92 : x
  2. Step 2: Convert to fraction form
    4,169.28/5,754 = 2,401.92/x
  3. Step 3: Cross multiply
    4,169.28x = 5,754 × 2,401.92
  4. Step 4: Simplify right side
    4,169.28x = 13,820,647.68
  5. Step 5: Solve for x
    x = 13,820,647.68/4,169.28
  6. Step 6: Final answer
    x = 3,314.88

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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.