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Finding the Fourth Proportional to 69,351.72, 104,027.84 and 16,761.12

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Solution

The fourth proportional to 69,351.72, 104,027.84 and 16,761.12 is: 25,141.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,351.72 : 104,027.84 = 16,761.12 : x
  2. Step 2: Convert to fraction form
    69,351.72/104,027.84 = 16,761.12/x
  3. Step 3: Cross multiply
    69,351.72x = 104,027.84 × 16,761.12
  4. Step 4: Simplify right side
    69,351.72x = 1,743,623,109.58
  5. Step 5: Solve for x
    x = 1,743,623,109.58/69,351.72
  6. Step 6: Final answer
    x = 25,141.74

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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.