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Finding the Fourth Proportional to 69,739.93, 104,608.95 and 17,149.87

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Solution

The fourth proportional to 69,739.93, 104,608.95 and 17,149.87 is: 25,724.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,739.93 : 104,608.95 = 17,149.87 : x
  2. Step 2: Convert to fraction form
    69,739.93/104,608.95 = 17,149.87/x
  3. Step 3: Cross multiply
    69,739.93x = 104,608.95 × 17,149.87
  4. Step 4: Simplify right side
    69,739.93x = 1,794,029,893.34
  5. Step 5: Solve for x
    x = 1,794,029,893.34/69,739.93
  6. Step 6: Final answer
    x = 25,724.57

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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.