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Finding the Fourth Proportional to 69,470.97, 104,206.14 and 16,880.60

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Solution

The fourth proportional to 69,470.97, 104,206.14 and 16,880.60 is: 25,320.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,470.97 : 104,206.14 = 16,880.60 : x
  2. Step 2: Convert to fraction form
    69,470.97/104,206.14 = 16,880.60/x
  3. Step 3: Cross multiply
    69,470.97x = 104,206.14 × 16,880.60
  4. Step 4: Simplify right side
    69,470.97x = 1,759,061,645.85
  5. Step 5: Solve for x
    x = 1,759,061,645.85/69,470.97
  6. Step 6: Final answer
    x = 25,320.82

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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.