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Finding the Fourth Proportional to 69,469.97, 104,204.64 and 16,879.60

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Solution

The fourth proportional to 69,469.97, 104,204.64 and 16,879.60 is: 25,319.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,469.97 : 104,204.64 = 16,879.60 : x
  2. Step 2: Convert to fraction form
    69,469.97/104,204.64 = 16,879.60/x
  3. Step 3: Cross multiply
    69,469.97x = 104,204.64 × 16,879.60
  4. Step 4: Simplify right side
    69,469.97x = 1,758,932,120.32
  5. Step 5: Solve for x
    x = 1,758,932,120.32/69,469.97
  6. Step 6: Final answer
    x = 25,319.32

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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.