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Finding the Fourth Proportional to 57,993.28, 80,069.28 and 44,540.48

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Solution

The fourth proportional to 57,993.28, 80,069.28 and 44,540.48 is: 61,495.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,993.28 : 80,069.28 = 44,540.48 : x
  2. Step 2: Convert to fraction form
    57,993.28/80,069.28 = 44,540.48/x
  3. Step 3: Cross multiply
    57,993.28x = 80,069.28 × 44,540.48
  4. Step 4: Simplify right side
    57,993.28x = 3,566,324,164.45
  5. Step 5: Solve for x
    x = 3,566,324,164.45/57,993.28
  6. Step 6: Final answer
    x = 61,495.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.