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Finding the Fourth Proportional to 49,955.56, 74,936.22 and 18,791.08

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Solution

The fourth proportional to 49,955.56, 74,936.22 and 18,791.08 is: 28,187.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,955.56 : 74,936.22 = 18,791.08 : x
  2. Step 2: Convert to fraction form
    49,955.56/74,936.22 = 18,791.08/x
  3. Step 3: Cross multiply
    49,955.56x = 74,936.22 × 18,791.08
  4. Step 4: Simplify right side
    49,955.56x = 1,408,132,504.92
  5. Step 5: Solve for x
    x = 1,408,132,504.92/49,955.56
  6. Step 6: Final answer
    x = 28,187.70

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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.