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Finding the Fourth Proportional to 6,791.09, 9,371.62 and 3,806.92

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Solution

The fourth proportional to 6,791.09, 9,371.62 and 3,806.92 is: 5,253.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,791.09 : 9,371.62 = 3,806.92 : x
  2. Step 2: Convert to fraction form
    6,791.09/9,371.62 = 3,806.92/x
  3. Step 3: Cross multiply
    6,791.09x = 9,371.62 × 3,806.92
  4. Step 4: Simplify right side
    6,791.09x = 35,677,007.61
  5. Step 5: Solve for x
    x = 35,677,007.61/6,791.09
  6. Step 6: Final answer
    x = 5,253.50

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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.