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Finding the Fourth Proportional to 2,325.48, 3,488.11 and 681.97

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Solution

The fourth proportional to 2,325.48, 3,488.11 and 681.97 is: 1,022.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,325.48 : 3,488.11 = 681.97 : x
  2. Step 2: Convert to fraction form
    2,325.48/3,488.11 = 681.97/x
  3. Step 3: Cross multiply
    2,325.48x = 3,488.11 × 681.97
  4. Step 4: Simplify right side
    2,325.48x = 2,378,765.53
  5. Step 5: Solve for x
    x = 2,378,765.53/2,325.48
  6. Step 6: Final answer
    x = 1,022.91

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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.