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Finding the Fourth Proportional to 2,791.06, 3,850.90 and 1,796.92

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Solution

The fourth proportional to 2,791.06, 3,850.90 and 1,796.92 is: 2,479.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,791.06 : 3,850.90 = 1,796.92 : x
  2. Step 2: Convert to fraction form
    2,791.06/3,850.90 = 1,796.92/x
  3. Step 3: Cross multiply
    2,791.06x = 3,850.90 × 1,796.92
  4. Step 4: Simplify right side
    2,791.06x = 6,919,745.11
  5. Step 5: Solve for x
    x = 6,919,745.11/2,791.06
  6. Step 6: Final answer
    x = 2,479.26

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1.5x scale

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.