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Finding the Fourth Proportional to 69,379.29, 104,069.54 and 16,788.82

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Solution

The fourth proportional to 69,379.29, 104,069.54 and 16,788.82 is: 25,183.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,379.29 : 104,069.54 = 16,788.82 : x
  2. Step 2: Convert to fraction form
    69,379.29/104,069.54 = 16,788.82/x
  3. Step 3: Cross multiply
    69,379.29x = 104,069.54 × 16,788.82
  4. Step 4: Simplify right side
    69,379.29x = 1,747,204,774.54
  5. Step 5: Solve for x
    x = 1,747,204,774.54/69,379.29
  6. Step 6: Final answer
    x = 25,183.38

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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.