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Finding the Fourth Proportional to 8,791, 12,133.02 and 5,067.16

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Solution

The fourth proportional to 8,791, 12,133.02 and 5,067.16 is: 6,993.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791 : 12,133.02 = 5,067.16 : x
  2. Step 2: Convert to fraction form
    8,791/12,133.02 = 5,067.16/x
  3. Step 3: Cross multiply
    8,791x = 12,133.02 × 5,067.16
  4. Step 4: Simplify right side
    8,791x = 61,479,953.62
  5. Step 5: Solve for x
    x = 61,479,953.62/8,791
  6. Step 6: Final answer
    x = 6,993.51

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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.