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Finding the Fourth Proportional to 62,791.71, 94,200.52 and 20,674.31

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Solution

The fourth proportional to 62,791.71, 94,200.52 and 20,674.31 is: 31,015.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,791.71 : 94,200.52 = 20,674.31 : x
  2. Step 2: Convert to fraction form
    62,791.71/94,200.52 = 20,674.31/x
  3. Step 3: Cross multiply
    62,791.71x = 94,200.52 × 20,674.31
  4. Step 4: Simplify right side
    62,791.71x = 1,947,530,268.72
  5. Step 5: Solve for x
    x = 1,947,530,268.72/62,791.71
  6. Step 6: Final answer
    x = 31,015.72

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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.