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Finding the Fourth Proportional to 11,329.88, 16,993.74 and 3,934.04

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Solution

The fourth proportional to 11,329.88, 16,993.74 and 3,934.04 is: 5,900.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,329.88 : 16,993.74 = 3,934.04 : x
  2. Step 2: Convert to fraction form
    11,329.88/16,993.74 = 3,934.04/x
  3. Step 3: Cross multiply
    11,329.88x = 16,993.74 × 3,934.04
  4. Step 4: Simplify right side
    11,329.88x = 66,854,052.91
  5. Step 5: Solve for x
    x = 66,854,052.91/11,329.88
  6. Step 6: Final answer
    x = 5,900.68

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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.