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Finding the Fourth Proportional to 2,711.28, 3,741.54 and 1,469.28

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Solution

The fourth proportional to 2,711.28, 3,741.54 and 1,469.28 is: 2,027.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,711.28 : 3,741.54 = 1,469.28 : x
  2. Step 2: Convert to fraction form
    2,711.28/3,741.54 = 1,469.28/x
  3. Step 3: Cross multiply
    2,711.28x = 3,741.54 × 1,469.28
  4. Step 4: Simplify right side
    2,711.28x = 5,497,369.89
  5. Step 5: Solve for x
    x = 5,497,369.89/2,711.28
  6. Step 6: Final answer
    x = 2,027.59

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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.