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Finding the Fourth Proportional to 33,310.98, 49,991.11 and 15,780.85

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Solution

The fourth proportional to 33,310.98, 49,991.11 and 15,780.85 is: 23,682.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,310.98 : 49,991.11 = 15,780.85 : x
  2. Step 2: Convert to fraction form
    33,310.98/49,991.11 = 15,780.85/x
  3. Step 3: Cross multiply
    33,310.98x = 49,991.11 × 15,780.85
  4. Step 4: Simplify right side
    33,310.98x = 788,902,043.81
  5. Step 5: Solve for x
    x = 788,902,043.81/33,310.98
  6. Step 6: Final answer
    x = 23,682.94

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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.