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Finding the Third Proportional to 13,116 and 27,912

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Solution

The third proportional to 13,116 and 27,912 is: 59,399.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,116 : 27,912 = 27,912 : x
  2. Step 2: Convert to fraction form
    13,116/27,912 = 27,912/x
  3. Step 3: Cross multiply
    13,116x = 27,912 × 27,912
  4. Step 4: Simplify right side
    13,116x = 779,079,744
  5. Step 5: Solve for x
    x = 779,079,744/13,116
  6. Step 6: Final answer
    x = 59,399.19

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.