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Finding the Third Proportional to 5,120 and 11,167

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Solution

The third proportional to 5,120 and 11,167 is: 24,355.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120 : 11,167 = 11,167 : x
  2. Step 2: Convert to fraction form
    5,120/11,167 = 11,167/x
  3. Step 3: Cross multiply
    5,120x = 11,167 × 11,167
  4. Step 4: Simplify right side
    5,120x = 124,701,889
  5. Step 5: Solve for x
    x = 124,701,889/5,120
  6. Step 6: Final answer
    x = 24,355.84

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.