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Finding the Fourth Proportional to 83,767.70, 125,649.81 and 27,611.17

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Solution

The fourth proportional to 83,767.70, 125,649.81 and 27,611.17 is: 41,416.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,767.70 : 125,649.81 = 27,611.17 : x
  2. Step 2: Convert to fraction form
    83,767.70/125,649.81 = 27,611.17/x
  3. Step 3: Cross multiply
    83,767.70x = 125,649.81 × 27,611.17
  4. Step 4: Simplify right side
    83,767.70x = 3,469,338,864.54
  5. Step 5: Solve for x
    x = 3,469,338,864.54/83,767.70
  6. Step 6: Final answer
    x = 41,416.19

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1.5x scale

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.