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Finding the Fourth Proportional to 2,672.44, 4,008.12 and 1,029.22

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Solution

The fourth proportional to 2,672.44, 4,008.12 and 1,029.22 is: 1,543.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,672.44 : 4,008.12 = 1,029.22 : x
  2. Step 2: Convert to fraction form
    2,672.44/4,008.12 = 1,029.22/x
  3. Step 3: Cross multiply
    2,672.44x = 4,008.12 × 1,029.22
  4. Step 4: Simplify right side
    2,672.44x = 4,125,237.27
  5. Step 5: Solve for x
    x = 4,125,237.27/2,672.44
  6. Step 6: Final answer
    x = 1,543.62

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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.