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Finding the Fourth Proportional to 7,659,236.88, 11,489,905.80 and 3,399,310.80

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Solution

The fourth proportional to 7,659,236.88, 11,489,905.80 and 3,399,310.80 is: 5,099,432.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,659,236.88 : 11,489,905.80 = 3,399,310.80 : x
  2. Step 2: Convert to fraction form
    7,659,236.88/11,489,905.80 = 3,399,310.80/x
  3. Step 3: Cross multiply
    7,659,236.88x = 11,489,905.80 × 3,399,310.80
  4. Step 4: Simplify right side
    7,659,236.88x = 39,057,760,876,922.64
  5. Step 5: Solve for x
    x = 39,057,760,876,922.64/7,659,236.88
  6. Step 6: Final answer
    x = 5,099,432.42

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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.