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Finding the Third Proportional to 5,165 and 11,290

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Solution

The third proportional to 5,165 and 11,290 is: 24,678.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,165 : 11,290 = 11,290 : x
  2. Step 2: Convert to fraction form
    5,165/11,290 = 11,290/x
  3. Step 3: Cross multiply
    5,165x = 11,290 × 11,290
  4. Step 4: Simplify right side
    5,165x = 127,464,100
  5. Step 5: Solve for x
    x = 127,464,100/5,165
  6. Step 6: Final answer
    x = 24,678.43

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.