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Finding the Fourth Proportional to 58,793.82, 81,136.94 and 31,936.32

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Solution

The fourth proportional to 58,793.82, 81,136.94 and 31,936.32 is: 44,072.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,793.82 : 81,136.94 = 31,936.32 : x
  2. Step 2: Convert to fraction form
    58,793.82/81,136.94 = 31,936.32/x
  3. Step 3: Cross multiply
    58,793.82x = 81,136.94 × 31,936.32
  4. Step 4: Simplify right side
    58,793.82x = 2,591,215,119.98
  5. Step 5: Solve for x
    x = 2,591,215,119.98/58,793.82
  6. Step 6: Final answer
    x = 44,072.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.