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Finding the Fourth Proportional to 69,843.78, 104,762.93 and 17,251.92

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Solution

The fourth proportional to 69,843.78, 104,762.93 and 17,251.92 is: 25,877.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,843.78 : 104,762.93 = 17,251.92 : x
  2. Step 2: Convert to fraction form
    69,843.78/104,762.93 = 17,251.92/x
  3. Step 3: Cross multiply
    69,843.78x = 104,762.93 × 17,251.92
  4. Step 4: Simplify right side
    69,843.78x = 1,807,361,601.07
  5. Step 5: Solve for x
    x = 1,807,361,601.07/69,843.78
  6. Step 6: Final answer
    x = 25,877.20

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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.