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Finding the Fourth Proportional to 73,240.70, 109,861.05 and 33,786.14

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Solution

The fourth proportional to 73,240.70, 109,861.05 and 33,786.14 is: 50,679.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,240.70 : 109,861.05 = 33,786.14 : x
  2. Step 2: Convert to fraction form
    73,240.70/109,861.05 = 33,786.14/x
  3. Step 3: Cross multiply
    73,240.70x = 109,861.05 × 33,786.14
  4. Step 4: Simplify right side
    73,240.70x = 3,711,780,815.85
  5. Step 5: Solve for x
    x = 3,711,780,815.85/73,240.70
  6. Step 6: Final answer
    x = 50,679.21

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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.