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Finding the Fourth Proportional to 11,367.69, 17,055.87 and 3,972.87

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Solution

The fourth proportional to 11,367.69, 17,055.87 and 3,972.87 is: 5,960.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,367.69 : 17,055.87 = 3,972.87 : x
  2. Step 2: Convert to fraction form
    11,367.69/17,055.87 = 3,972.87/x
  3. Step 3: Cross multiply
    11,367.69x = 17,055.87 × 3,972.87
  4. Step 4: Simplify right side
    11,367.69x = 67,760,754.25
  5. Step 5: Solve for x
    x = 67,760,754.25/11,367.69
  6. Step 6: Final answer
    x = 5,960.82

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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.