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Finding the Fourth Proportional to 33,993.20, 50,989.84 and 10,619.76

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Solution

The fourth proportional to 33,993.20, 50,989.84 and 10,619.76 is: 15,929.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,993.20 : 50,989.84 = 10,619.76 : x
  2. Step 2: Convert to fraction form
    33,993.20/50,989.84 = 10,619.76/x
  3. Step 3: Cross multiply
    33,993.20x = 50,989.84 × 10,619.76
  4. Step 4: Simplify right side
    33,993.20x = 541,499,863.24
  5. Step 5: Solve for x
    x = 541,499,863.24/33,993.20
  6. Step 6: Final answer
    x = 15,929.65

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Similar ratio
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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.