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Finding the Fourth Proportional to 3,742.88, 5,614.97 and 1,244.21

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Solution

The fourth proportional to 3,742.88, 5,614.97 and 1,244.21 is: 1,866.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742.88 : 5,614.97 = 1,244.21 : x
  2. Step 2: Convert to fraction form
    3,742.88/5,614.97 = 1,244.21/x
  3. Step 3: Cross multiply
    3,742.88x = 5,614.97 × 1,244.21
  4. Step 4: Simplify right side
    3,742.88x = 6,986,167.53
  5. Step 5: Solve for x
    x = 6,986,167.53/3,742.88
  6. Step 6: Final answer
    x = 1,866.52

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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.