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Finding the Fourth Proportional to 8,167, 11,270.64 and 4,441

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Solution

The fourth proportional to 8,167, 11,270.64 and 4,441 is: 6,128.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,167 : 11,270.64 = 4,441 : x
  2. Step 2: Convert to fraction form
    8,167/11,270.64 = 4,441/x
  3. Step 3: Cross multiply
    8,167x = 11,270.64 × 4,441
  4. Step 4: Simplify right side
    8,167x = 50,052,912.24
  5. Step 5: Solve for x
    x = 50,052,912.24/8,167
  6. Step 6: Final answer
    x = 6,128.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.