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Finding the Fourth Proportional to 57,993.38, 86,990.06 and 14,217.38

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Solution

The fourth proportional to 57,993.38, 86,990.06 and 14,217.38 is: 21,326.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,993.38 : 86,990.06 = 14,217.38 : x
  2. Step 2: Convert to fraction form
    57,993.38/86,990.06 = 14,217.38/x
  3. Step 3: Cross multiply
    57,993.38x = 86,990.06 × 14,217.38
  4. Step 4: Simplify right side
    57,993.38x = 1,236,770,339.84
  5. Step 5: Solve for x
    x = 1,236,770,339.84/57,993.38
  6. Step 6: Final answer
    x = 21,326.06

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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.