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Finding the Fourth Proportional to 62,912.68, 94,362.54 and 20,791.24

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Solution

The fourth proportional to 62,912.68, 94,362.54 and 20,791.24 is: 31,184.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,912.68 : 94,362.54 = 20,791.24 : x
  2. Step 2: Convert to fraction form
    62,912.68/94,362.54 = 20,791.24/x
  3. Step 3: Cross multiply
    62,912.68x = 94,362.54 × 20,791.24
  4. Step 4: Simplify right side
    62,912.68x = 1,961,914,216.15
  5. Step 5: Solve for x
    x = 1,961,914,216.15/62,912.68
  6. Step 6: Final answer
    x = 31,184.72

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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.