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Finding the Fourth Proportional to 43,958.44, 65,932.82 and 12,369.50

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Solution

The fourth proportional to 43,958.44, 65,932.82 and 12,369.50 is: 18,552.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,958.44 : 65,932.82 = 12,369.50 : x
  2. Step 2: Convert to fraction form
    43,958.44/65,932.82 = 12,369.50/x
  3. Step 3: Cross multiply
    43,958.44x = 65,932.82 × 12,369.50
  4. Step 4: Simplify right side
    43,958.44x = 815,556,016.99
  5. Step 5: Solve for x
    x = 815,556,016.99/43,958.44
  6. Step 6: Final answer
    x = 18,552.89

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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.