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Finding the Fourth Proportional to 3,781.71, 5,672.55 and 1,008.39

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Solution

The fourth proportional to 3,781.71, 5,672.55 and 1,008.39 is: 1,512.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,781.71 : 5,672.55 = 1,008.39 : x
  2. Step 2: Convert to fraction form
    3,781.71/5,672.55 = 1,008.39/x
  3. Step 3: Cross multiply
    3,781.71x = 5,672.55 × 1,008.39
  4. Step 4: Simplify right side
    3,781.71x = 5,720,142.69
  5. Step 5: Solve for x
    x = 5,720,142.69/3,781.71
  6. Step 6: Final answer
    x = 1,512.58

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.