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Finding the Third Proportional to 11,912 and 25,840

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Solution

The third proportional to 11,912 and 25,840 is: 56,053.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,912 : 25,840 = 25,840 : x
  2. Step 2: Convert to fraction form
    11,912/25,840 = 25,840/x
  3. Step 3: Cross multiply
    11,912x = 25,840 × 25,840
  4. Step 4: Simplify right side
    11,912x = 667,705,600
  5. Step 5: Solve for x
    x = 667,705,600/11,912
  6. Step 6: Final answer
    x = 56,053.19

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.