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Finding the Fourth Proportional to 57,993.87, 87,001.74 and 18,540.39

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Solution

The fourth proportional to 57,993.87, 87,001.74 and 18,540.39 is: 27,814.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,993.87 : 87,001.74 = 18,540.39 : x
  2. Step 2: Convert to fraction form
    57,993.87/87,001.74 = 18,540.39/x
  3. Step 3: Cross multiply
    57,993.87x = 87,001.74 × 18,540.39
  4. Step 4: Simplify right side
    57,993.87x = 1,613,046,190.28
  5. Step 5: Solve for x
    x = 1,613,046,190.28/57,993.87
  6. Step 6: Final answer
    x = 27,814.08

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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.