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Finding the Third Proportional to 5,517 and 10,230

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Solution

The third proportional to 5,517 and 10,230 is: 18,969.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,517 : 10,230 = 10,230 : x
  2. Step 2: Convert to fraction form
    5,517/10,230 = 10,230/x
  3. Step 3: Cross multiply
    5,517x = 10,230 × 10,230
  4. Step 4: Simplify right side
    5,517x = 104,652,900
  5. Step 5: Solve for x
    x = 104,652,900/5,517
  6. Step 6: Final answer
    x = 18,969.17

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Why These Related Problems?

These problems maintain the same ratio (1.85) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.