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Finding the Fourth Proportional to 33,422.70, 50,121.90 and 11,236.80

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Solution

The fourth proportional to 33,422.70, 50,121.90 and 11,236.80 is: 16,851.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,422.70 : 50,121.90 = 11,236.80 : x
  2. Step 2: Convert to fraction form
    33,422.70/50,121.90 = 11,236.80/x
  3. Step 3: Cross multiply
    33,422.70x = 50,121.90 × 11,236.80
  4. Step 4: Simplify right side
    33,422.70x = 563,209,765.92
  5. Step 5: Solve for x
    x = 563,209,765.92/33,422.70
  6. Step 6: Final answer
    x = 16,851.12

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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.