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Finding the Fourth Proportional to 69,735.92, 104,648.43 and 25,358.45

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Solution

The fourth proportional to 69,735.92, 104,648.43 and 25,358.45 is: 38,053.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,735.92 : 104,648.43 = 25,358.45 : x
  2. Step 2: Convert to fraction form
    69,735.92/104,648.43 = 25,358.45/x
  3. Step 3: Cross multiply
    69,735.92x = 104,648.43 × 25,358.45
  4. Step 4: Simplify right side
    69,735.92x = 2,653,721,979.73
  5. Step 5: Solve for x
    x = 2,653,721,979.73/69,735.92
  6. Step 6: Final answer
    x = 38,053.87

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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.