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Finding the Fourth Proportional to 2,732.74, 4,098.40 and 882.90

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Solution

The fourth proportional to 2,732.74, 4,098.40 and 882.90 is: 1,324.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,732.74 : 4,098.40 = 882.90 : x
  2. Step 2: Convert to fraction form
    2,732.74/4,098.40 = 882.90/x
  3. Step 3: Cross multiply
    2,732.74x = 4,098.40 × 882.90
  4. Step 4: Simplify right side
    2,732.74x = 3,618,475.15
  5. Step 5: Solve for x
    x = 3,618,475.15/2,732.74
  6. Step 6: Final answer
    x = 1,324.12

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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.