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Finding the Fourth Proportional to 69,781.79, 96,297.81 and 37,949.96

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Solution

The fourth proportional to 69,781.79, 96,297.81 and 37,949.96 is: 52,370.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,781.79 : 96,297.81 = 37,949.96 : x
  2. Step 2: Convert to fraction form
    69,781.79/96,297.81 = 37,949.96/x
  3. Step 3: Cross multiply
    69,781.79x = 96,297.81 × 37,949.96
  4. Step 4: Simplify right side
    69,781.79x = 3,654,498,037.59
  5. Step 5: Solve for x
    x = 3,654,498,037.59/69,781.79
  6. Step 6: Final answer
    x = 52,370.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.