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Finding the Fourth Proportional to 29,291, 43,850.32 and 18,161.96

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Solution

The fourth proportional to 29,291, 43,850.32 and 18,161.96 is: 27,189.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,291 : 43,850.32 = 18,161.96 : x
  2. Step 2: Convert to fraction form
    29,291/43,850.32 = 18,161.96/x
  3. Step 3: Cross multiply
    29,291x = 43,850.32 × 18,161.96
  4. Step 4: Simplify right side
    29,291x = 796,407,757.83
  5. Step 5: Solve for x
    x = 796,407,757.83/29,291
  6. Step 6: Final answer
    x = 27,189.50

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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.