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Finding the Fourth Proportional to 13,791.92, 20,687.92 and 5,026.82

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Solution

The fourth proportional to 13,791.92, 20,687.92 and 5,026.82 is: 7,540.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,791.92 : 20,687.92 = 5,026.82 : x
  2. Step 2: Convert to fraction form
    13,791.92/20,687.92 = 5,026.82/x
  3. Step 3: Cross multiply
    13,791.92x = 20,687.92 × 5,026.82
  4. Step 4: Simplify right side
    13,791.92x = 103,994,450.01
  5. Step 5: Solve for x
    x = 103,994,450.01/13,791.92
  6. Step 6: Final answer
    x = 7,540.24

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1.5x scale

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.