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Finding the Fourth Proportional to 33,799.20, 50,713.20 and 21,328.80

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Solution

The fourth proportional to 33,799.20, 50,713.20 and 21,328.80 is: 32,002.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,799.20 : 50,713.20 = 21,328.80 : x
  2. Step 2: Convert to fraction form
    33,799.20/50,713.20 = 21,328.80/x
  3. Step 3: Cross multiply
    33,799.20x = 50,713.20 × 21,328.80
  4. Step 4: Simplify right side
    33,799.20x = 1,081,651,700.16
  5. Step 5: Solve for x
    x = 1,081,651,700.16/33,799.20
  6. Step 6: Final answer
    x = 32,002.29

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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.