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Finding the Fourth Proportional to 33,879.21, 50,826.89 and 11,692.78

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Solution

The fourth proportional to 33,879.21, 50,826.89 and 11,692.78 is: 17,541.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,879.21 : 50,826.89 = 11,692.78 : x
  2. Step 2: Convert to fraction form
    33,879.21/50,826.89 = 11,692.78/x
  3. Step 3: Cross multiply
    33,879.21x = 50,826.89 × 11,692.78
  4. Step 4: Simplify right side
    33,879.21x = 594,307,687.97
  5. Step 5: Solve for x
    x = 594,307,687.97/33,879.21
  6. Step 6: Final answer
    x = 17,541.96

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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.