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Finding the Fourth Proportional to 39,993.94, 59,942.31 and 30,101.41

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Solution

The fourth proportional to 39,993.94, 59,942.31 and 30,101.41 is: 45,115.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,993.94 : 59,942.31 = 30,101.41 : x
  2. Step 2: Convert to fraction form
    39,993.94/59,942.31 = 30,101.41/x
  3. Step 3: Cross multiply
    39,993.94x = 59,942.31 × 30,101.41
  4. Step 4: Simplify right side
    39,993.94x = 1,804,348,049.66
  5. Step 5: Solve for x
    x = 1,804,348,049.66/39,993.94
  6. Step 6: Final answer
    x = 45,115.54

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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.