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Finding the Third Proportional to 5,391 and 11,610

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Solution

The third proportional to 5,391 and 11,610 is: 25,003.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,391 : 11,610 = 11,610 : x
  2. Step 2: Convert to fraction form
    5,391/11,610 = 11,610/x
  3. Step 3: Cross multiply
    5,391x = 11,610 × 11,610
  4. Step 4: Simplify right side
    5,391x = 134,792,100
  5. Step 5: Solve for x
    x = 134,792,100/5,391
  6. Step 6: Final answer
    x = 25,003.17

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.