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Finding the Fourth Proportional to 33,720.80, 50,581.20 and 32,748.80

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Solution

The fourth proportional to 33,720.80, 50,581.20 and 32,748.80 is: 49,123.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,720.80 : 50,581.20 = 32,748.80 : x
  2. Step 2: Convert to fraction form
    33,720.80/50,581.20 = 32,748.80/x
  3. Step 3: Cross multiply
    33,720.80x = 50,581.20 × 32,748.80
  4. Step 4: Simplify right side
    33,720.80x = 1,656,473,602.56
  5. Step 5: Solve for x
    x = 1,656,473,602.56/33,720.80
  6. Step 6: Final answer
    x = 49,123.20

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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.