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Finding the Fourth Proportional to 33,946.80, 50,958.60 and 20,103.60

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Solution

The fourth proportional to 33,946.80, 50,958.60 and 20,103.60 is: 30,178.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,946.80 : 50,958.60 = 20,103.60 : x
  2. Step 2: Convert to fraction form
    33,946.80/50,958.60 = 20,103.60/x
  3. Step 3: Cross multiply
    33,946.80x = 50,958.60 × 20,103.60
  4. Step 4: Simplify right side
    33,946.80x = 1,024,451,310.96
  5. Step 5: Solve for x
    x = 1,024,451,310.96/33,946.80
  6. Step 6: Final answer
    x = 30,178.14

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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.