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Finding the Fourth Proportional to 69,648.66, 104,472.78 and 25,275.36

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Solution

The fourth proportional to 69,648.66, 104,472.78 and 25,275.36 is: 37,912.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,648.66 : 104,472.78 = 25,275.36 : x
  2. Step 2: Convert to fraction form
    69,648.66/104,472.78 = 25,275.36/x
  3. Step 3: Cross multiply
    69,648.66x = 104,472.78 × 25,275.36
  4. Step 4: Simplify right side
    69,648.66x = 2,640,587,124.70
  5. Step 5: Solve for x
    x = 2,640,587,124.70/69,648.66
  6. Step 6: Final answer
    x = 37,912.96

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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.