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Finding the Fourth Proportional to 1,951.49, 2,691.82 and 1,361.81

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Solution

The fourth proportional to 1,951.49, 2,691.82 and 1,361.81 is: 1,878.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,951.49 : 2,691.82 = 1,361.81 : x
  2. Step 2: Convert to fraction form
    1,951.49/2,691.82 = 1,361.81/x
  3. Step 3: Cross multiply
    1,951.49x = 2,691.82 × 1,361.81
  4. Step 4: Simplify right side
    1,951.49x = 3,665,747.39
  5. Step 5: Solve for x
    x = 3,665,747.39/1,951.49
  6. Step 6: Final answer
    x = 1,878.44

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.