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Finding the Fourth Proportional to 69,747.28, 104,620.02 and 17,157.22

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Solution

The fourth proportional to 69,747.28, 104,620.02 and 17,157.22 is: 25,735.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,747.28 : 104,620.02 = 17,157.22 : x
  2. Step 2: Convert to fraction form
    69,747.28/104,620.02 = 17,157.22/x
  3. Step 3: Cross multiply
    69,747.28x = 104,620.02 × 17,157.22
  4. Step 4: Simplify right side
    69,747.28x = 1,794,988,699.54
  5. Step 5: Solve for x
    x = 1,794,988,699.54/69,747.28
  6. Step 6: Final answer
    x = 25,735.61

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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.