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Finding the Fourth Proportional to 2,672.42, 4,008.62 and 1,441.22

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Solution

The fourth proportional to 2,672.42, 4,008.62 and 1,441.22 is: 2,161.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,672.42 : 4,008.62 = 1,441.22 : x
  2. Step 2: Convert to fraction form
    2,672.42/4,008.62 = 1,441.22/x
  3. Step 3: Cross multiply
    2,672.42x = 4,008.62 × 1,441.22
  4. Step 4: Simplify right side
    2,672.42x = 5,777,286.88
  5. Step 5: Solve for x
    x = 5,777,286.88/2,672.42
  6. Step 6: Final answer
    x = 2,161.82

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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.