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Finding the Fourth Proportional to 36,974.80, 55,429.80 and 22,189.60

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Solution

The fourth proportional to 36,974.80, 55,429.80 and 22,189.60 is: 33,264.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,974.80 : 55,429.80 = 22,189.60 : x
  2. Step 2: Convert to fraction form
    36,974.80/55,429.80 = 22,189.60/x
  3. Step 3: Cross multiply
    36,974.80x = 55,429.80 × 22,189.60
  4. Step 4: Simplify right side
    36,974.80x = 1,229,965,090.08
  5. Step 5: Solve for x
    x = 1,229,965,090.08/36,974.80
  6. Step 6: Final answer
    x = 33,264.96

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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.