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Finding the Fourth Proportional to 33,991.70, 50,974.52 and 11,190.20

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Solution

The fourth proportional to 33,991.70, 50,974.52 and 11,190.20 is: 16,781.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,991.70 : 50,974.52 = 11,190.20 : x
  2. Step 2: Convert to fraction form
    33,991.70/50,974.52 = 11,190.20/x
  3. Step 3: Cross multiply
    33,991.70x = 50,974.52 × 11,190.20
  4. Step 4: Simplify right side
    33,991.70x = 570,414,762.88
  5. Step 5: Solve for x
    x = 570,414,762.88/33,991.70
  6. Step 6: Final answer
    x = 16,781.00

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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.