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Finding the Fourth Proportional to 3,044.25, 4,201.07 and 1,647

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Solution

The fourth proportional to 3,044.25, 4,201.07 and 1,647 is: 2,272.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,044.25 : 4,201.07 = 1,647 : x
  2. Step 2: Convert to fraction form
    3,044.25/4,201.07 = 1,647/x
  3. Step 3: Cross multiply
    3,044.25x = 4,201.07 × 1,647
  4. Step 4: Simplify right side
    3,044.25x = 6,919,154.06
  5. Step 5: Solve for x
    x = 6,919,154.06/3,044.25
  6. Step 6: Final answer
    x = 2,272.86

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Why These Related Problems?

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