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Finding the Fourth Proportional to 73,039.62, 100,794.70 and 39,505.62

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Solution

The fourth proportional to 73,039.62, 100,794.70 and 39,505.62 is: 54,517.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,039.62 : 100,794.70 = 39,505.62 : x
  2. Step 2: Convert to fraction form
    73,039.62/100,794.70 = 39,505.62/x
  3. Step 3: Cross multiply
    73,039.62x = 100,794.70 × 39,505.62
  4. Step 4: Simplify right side
    73,039.62x = 3,981,957,116.21
  5. Step 5: Solve for x
    x = 3,981,957,116.21/73,039.62
  6. Step 6: Final answer
    x = 54,517.77

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1.5x scale

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.