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Finding the Fourth Proportional to 63,986.52, 95,993.82 and 19,616.61

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Solution

The fourth proportional to 63,986.52, 95,993.82 and 19,616.61 is: 29,429.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,986.52 : 95,993.82 = 19,616.61 : x
  2. Step 2: Convert to fraction form
    63,986.52/95,993.82 = 19,616.61/x
  3. Step 3: Cross multiply
    63,986.52x = 95,993.82 × 19,616.61
  4. Step 4: Simplify right side
    63,986.52x = 1,883,073,329.35
  5. Step 5: Solve for x
    x = 1,883,073,329.35/63,986.52
  6. Step 6: Final answer
    x = 29,429.22

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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.