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Finding the Third Proportional to 11,991 and 26,088

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Solution

The third proportional to 11,991 and 26,088 is: 56,757.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,991 : 26,088 = 26,088 : x
  2. Step 2: Convert to fraction form
    11,991/26,088 = 26,088/x
  3. Step 3: Cross multiply
    11,991x = 26,088 × 26,088
  4. Step 4: Simplify right side
    11,991x = 680,583,744
  5. Step 5: Solve for x
    x = 680,583,744/11,991
  6. Step 6: Final answer
    x = 56,757.88

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.