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Finding the Fourth Proportional to 73,033.84, 100,786.80 and 39,499.84

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Solution

The fourth proportional to 73,033.84, 100,786.80 and 39,499.84 is: 54,509.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,033.84 : 100,786.80 = 39,499.84 : x
  2. Step 2: Convert to fraction form
    73,033.84/100,786.80 = 39,499.84/x
  3. Step 3: Cross multiply
    73,033.84x = 100,786.80 × 39,499.84
  4. Step 4: Simplify right side
    73,033.84x = 3,981,062,474.11
  5. Step 5: Solve for x
    x = 3,981,062,474.11/73,033.84
  6. Step 6: Final answer
    x = 54,509.83

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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.