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Finding the Fourth Proportional to 2,324.48, 3,486.72 and 863.24

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Solution

The fourth proportional to 2,324.48, 3,486.72 and 863.24 is: 1,294.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,324.48 : 3,486.72 = 863.24 : x
  2. Step 2: Convert to fraction form
    2,324.48/3,486.72 = 863.24/x
  3. Step 3: Cross multiply
    2,324.48x = 3,486.72 × 863.24
  4. Step 4: Simplify right side
    2,324.48x = 3,009,876.17
  5. Step 5: Solve for x
    x = 3,009,876.17/2,324.48
  6. Step 6: Final answer
    x = 1,294.86

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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.