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Finding the Fourth Proportional to 36,641.44, 54,913.56 and 19,958.68

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Solution

The fourth proportional to 36,641.44, 54,913.56 and 19,958.68 is: 29,911.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,641.44 : 54,913.56 = 19,958.68 : x
  2. Step 2: Convert to fraction form
    36,641.44/54,913.56 = 19,958.68/x
  3. Step 3: Cross multiply
    36,641.44x = 54,913.56 × 19,958.68
  4. Step 4: Simplify right side
    36,641.44x = 1,096,002,171.70
  5. Step 5: Solve for x
    x = 1,096,002,171.70/36,641.44
  6. Step 6: Final answer
    x = 29,911.55

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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.