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Finding the Fourth Proportional to 3,591.81, 5,398.65 and 2,629.53

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Solution

The fourth proportional to 3,591.81, 5,398.65 and 2,629.53 is: 3,952.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,591.81 : 5,398.65 = 2,629.53 : x
  2. Step 2: Convert to fraction form
    3,591.81/5,398.65 = 2,629.53/x
  3. Step 3: Cross multiply
    3,591.81x = 5,398.65 × 2,629.53
  4. Step 4: Simplify right side
    3,591.81x = 14,195,912.13
  5. Step 5: Solve for x
    x = 14,195,912.13/3,591.81
  6. Step 6: Final answer
    x = 3,952.30

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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.