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Finding the Fourth Proportional to 33,593.20, 50,346.60 and 20,431.60

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Solution

The fourth proportional to 33,593.20, 50,346.60 and 20,431.60 is: 30,621.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,593.20 : 50,346.60 = 20,431.60 : x
  2. Step 2: Convert to fraction form
    33,593.20/50,346.60 = 20,431.60/x
  3. Step 3: Cross multiply
    33,593.20x = 50,346.60 × 20,431.60
  4. Step 4: Simplify right side
    33,593.20x = 1,028,661,592.56
  5. Step 5: Solve for x
    x = 1,028,661,592.56/33,593.20
  6. Step 6: Final answer
    x = 30,621.13

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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.