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Finding the Fourth Proportional to 2,711.72, 3,742.69 and 1,532.79

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Solution

The fourth proportional to 2,711.72, 3,742.69 and 1,532.79 is: 2,115.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,711.72 : 3,742.69 = 1,532.79 : x
  2. Step 2: Convert to fraction form
    2,711.72/3,742.69 = 1,532.79/x
  3. Step 3: Cross multiply
    2,711.72x = 3,742.69 × 1,532.79
  4. Step 4: Simplify right side
    2,711.72x = 5,736,750.14
  5. Step 5: Solve for x
    x = 5,736,750.14/2,711.72
  6. Step 6: Final answer
    x = 2,115.54

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