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Finding the Fourth Proportional to 50,765.82, 76,092.09 and 21,173.82

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Solution

The fourth proportional to 50,765.82, 76,092.09 and 21,173.82 is: 31,737.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,765.82 : 76,092.09 = 21,173.82 : x
  2. Step 2: Convert to fraction form
    50,765.82/76,092.09 = 21,173.82/x
  3. Step 3: Cross multiply
    50,765.82x = 76,092.09 × 21,173.82
  4. Step 4: Simplify right side
    50,765.82x = 1,611,160,217.08
  5. Step 5: Solve for x
    x = 1,611,160,217.08/50,765.82
  6. Step 6: Final answer
    x = 31,737.11

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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.