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Finding the Fourth Proportional to 3,448.73, 5,169.89 and 1,256.96

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Solution

The fourth proportional to 3,448.73, 5,169.89 and 1,256.96 is: 1,884.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,448.73 : 5,169.89 = 1,256.96 : x
  2. Step 2: Convert to fraction form
    3,448.73/5,169.89 = 1,256.96/x
  3. Step 3: Cross multiply
    3,448.73x = 5,169.89 × 1,256.96
  4. Step 4: Simplify right side
    3,448.73x = 6,498,361.00
  5. Step 5: Solve for x
    x = 6,498,361.00/3,448.73
  6. Step 6: Final answer
    x = 1,884.28

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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.