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Finding the Fourth Proportional to 36,313.20, 54,469.80 and 30,481.20

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Solution

The fourth proportional to 36,313.20, 54,469.80 and 30,481.20 is: 45,721.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,313.20 : 54,469.80 = 30,481.20 : x
  2. Step 2: Convert to fraction form
    36,313.20/54,469.80 = 30,481.20/x
  3. Step 3: Cross multiply
    36,313.20x = 54,469.80 × 30,481.20
  4. Step 4: Simplify right side
    36,313.20x = 1,660,304,867.76
  5. Step 5: Solve for x
    x = 1,660,304,867.76/36,313.20
  6. Step 6: Final answer
    x = 45,721.80

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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.