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Finding the Fourth Proportional to 19,941.80, 29,906.94 and 6,793.88

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Solution

The fourth proportional to 19,941.80, 29,906.94 and 6,793.88 is: 10,188.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,941.80 : 29,906.94 = 6,793.88 : x
  2. Step 2: Convert to fraction form
    19,941.80/29,906.94 = 6,793.88/x
  3. Step 3: Cross multiply
    19,941.80x = 29,906.94 × 6,793.88
  4. Step 4: Simplify right side
    19,941.80x = 203,184,161.53
  5. Step 5: Solve for x
    x = 203,184,161.53/19,941.80
  6. Step 6: Final answer
    x = 10,188.86

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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.