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Finding the Third Proportional to 5,911 and 9,171

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Solution

The third proportional to 5,911 and 9,171 is: 14,228.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,911 : 9,171 = 9,171 : x
  2. Step 2: Convert to fraction form
    5,911/9,171 = 9,171/x
  3. Step 3: Cross multiply
    5,911x = 9,171 × 9,171
  4. Step 4: Simplify right side
    5,911x = 84,107,241
  5. Step 5: Solve for x
    x = 84,107,241/5,911
  6. Step 6: Final answer
    x = 14,228.94

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.