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Finding the Fourth Proportional to 69,379.28, 104,069.52 and 16,788.84

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Solution

The fourth proportional to 69,379.28, 104,069.52 and 16,788.84 is: 25,183.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,379.28 : 104,069.52 = 16,788.84 : x
  2. Step 2: Convert to fraction form
    69,379.28/104,069.52 = 16,788.84/x
  3. Step 3: Cross multiply
    69,379.28x = 104,069.52 × 16,788.84
  4. Step 4: Simplify right side
    69,379.28x = 1,747,206,520.16
  5. Step 5: Solve for x
    x = 1,747,206,520.16/69,379.28
  6. Step 6: Final answer
    x = 25,183.41

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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.