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Finding the Fourth Proportional to 33,692.20, 50,579.90 and 21,212.20

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Solution

The fourth proportional to 33,692.20, 50,579.90 and 21,212.20 is: 31,844.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,692.20 : 50,579.90 = 21,212.20 : x
  2. Step 2: Convert to fraction form
    33,692.20/50,579.90 = 21,212.20/x
  3. Step 3: Cross multiply
    33,692.20x = 50,579.90 × 21,212.20
  4. Step 4: Simplify right side
    33,692.20x = 1,072,910,954.78
  5. Step 5: Solve for x
    x = 1,072,910,954.78/33,692.20
  6. Step 6: Final answer
    x = 31,844.49

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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.