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Finding the Fourth Proportional to 10,636.44, 15,942.12 and 4,393.44

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Solution

The fourth proportional to 10,636.44, 15,942.12 and 4,393.44 is: 6,584.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,636.44 : 15,942.12 = 4,393.44 : x
  2. Step 2: Convert to fraction form
    10,636.44/15,942.12 = 4,393.44/x
  3. Step 3: Cross multiply
    10,636.44x = 15,942.12 × 4,393.44
  4. Step 4: Simplify right side
    10,636.44x = 70,040,747.69
  5. Step 5: Solve for x
    x = 70,040,747.69/10,636.44
  6. Step 6: Final answer
    x = 6,584.98

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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.