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Finding the Fourth Proportional to 36,033.80, 54,050.70 and 20,481.80

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Solution

The fourth proportional to 36,033.80, 54,050.70 and 20,481.80 is: 30,722.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,033.80 : 54,050.70 = 20,481.80 : x
  2. Step 2: Convert to fraction form
    36,033.80/54,050.70 = 20,481.80/x
  3. Step 3: Cross multiply
    36,033.80x = 54,050.70 × 20,481.80
  4. Step 4: Simplify right side
    36,033.80x = 1,107,055,627.26
  5. Step 5: Solve for x
    x = 1,107,055,627.26/36,033.80
  6. Step 6: Final answer
    x = 30,722.70

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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.