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Finding the Fourth Proportional to 36,982.80, 55,481.40 and 15,922.80

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Solution

The fourth proportional to 36,982.80, 55,481.40 and 15,922.80 is: 23,887.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,982.80 : 55,481.40 = 15,922.80 : x
  2. Step 2: Convert to fraction form
    36,982.80/55,481.40 = 15,922.80/x
  3. Step 3: Cross multiply
    36,982.80x = 55,481.40 × 15,922.80
  4. Step 4: Simplify right side
    36,982.80x = 883,419,235.92
  5. Step 5: Solve for x
    x = 883,419,235.92/36,982.80
  6. Step 6: Final answer
    x = 23,887.30

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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.