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Finding the Fourth Proportional to 69,643.86, 104,481.28 and 25,269.63

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Solution

The fourth proportional to 69,643.86, 104,481.28 and 25,269.63 is: 37,910.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,643.86 : 104,481.28 = 25,269.63 : x
  2. Step 2: Convert to fraction form
    69,643.86/104,481.28 = 25,269.63/x
  3. Step 3: Cross multiply
    69,643.86x = 104,481.28 × 25,269.63
  4. Step 4: Simplify right side
    69,643.86x = 2,640,203,586.09
  5. Step 5: Solve for x
    x = 2,640,203,586.09/69,643.86
  6. Step 6: Final answer
    x = 37,910.07

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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.