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Finding the Third Proportional to 5,238 and 11,015

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Solution

The third proportional to 5,238 and 11,015 is: 23,163.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,238 : 11,015 = 11,015 : x
  2. Step 2: Convert to fraction form
    5,238/11,015 = 11,015/x
  3. Step 3: Cross multiply
    5,238x = 11,015 × 11,015
  4. Step 4: Simplify right side
    5,238x = 121,330,225
  5. Step 5: Solve for x
    x = 121,330,225/5,238
  6. Step 6: Final answer
    x = 23,163.46

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.