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Finding the Fourth Proportional to 2,324.75, 3,486.51 and 863.10

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Solution

The fourth proportional to 2,324.75, 3,486.51 and 863.10 is: 1,294.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,324.75 : 3,486.51 = 863.10 : x
  2. Step 2: Convert to fraction form
    2,324.75/3,486.51 = 863.10/x
  3. Step 3: Cross multiply
    2,324.75x = 3,486.51 × 863.10
  4. Step 4: Simplify right side
    2,324.75x = 3,009,206.78
  5. Step 5: Solve for x
    x = 3,009,206.78/2,324.75
  6. Step 6: Final answer
    x = 1,294.42

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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.