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Finding the Fourth Proportional to 2,327.42, 3,491.13 and 866.58

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Solution

The fourth proportional to 2,327.42, 3,491.13 and 866.58 is: 1,299.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,327.42 : 3,491.13 = 866.58 : x
  2. Step 2: Convert to fraction form
    2,327.42/3,491.13 = 866.58/x
  3. Step 3: Cross multiply
    2,327.42x = 3,491.13 × 866.58
  4. Step 4: Simplify right side
    2,327.42x = 3,025,343.44
  5. Step 5: Solve for x
    x = 3,025,343.44/2,327.42
  6. Step 6: Final answer
    x = 1,299.87

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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.