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Finding the Fourth Proportional to 2,324.12, 3,486.00 and 764.17

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Solution

The fourth proportional to 2,324.12, 3,486.00 and 764.17 is: 1,146.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,324.12 : 3,486.00 = 764.17 : x
  2. Step 2: Convert to fraction form
    2,324.12/3,486.00 = 764.17/x
  3. Step 3: Cross multiply
    2,324.12x = 3,486.00 × 764.17
  4. Step 4: Simplify right side
    2,324.12x = 2,663,902.25
  5. Step 5: Solve for x
    x = 2,663,902.25/2,324.12
  6. Step 6: Final answer
    x = 1,146.20

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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.