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Finding the Fourth Proportional to 49,791.28, 74,733.80 and 33,163

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Solution

The fourth proportional to 49,791.28, 74,733.80 and 33,163 is: 49,775.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,791.28 : 74,733.80 = 33,163 : x
  2. Step 2: Convert to fraction form
    49,791.28/74,733.80 = 33,163/x
  3. Step 3: Cross multiply
    49,791.28x = 74,733.80 × 33,163
  4. Step 4: Simplify right side
    49,791.28x = 2,478,397,009.40
  5. Step 5: Solve for x
    x = 2,478,397,009.40/49,791.28
  6. Step 6: Final answer
    x = 49,775.72

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.