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Finding the Third Proportional to 12,122 and 26,438

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Solution

The third proportional to 12,122 and 26,438 is: 57,661.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,122 : 26,438 = 26,438 : x
  2. Step 2: Convert to fraction form
    12,122/26,438 = 26,438/x
  3. Step 3: Cross multiply
    12,122x = 26,438 × 26,438
  4. Step 4: Simplify right side
    12,122x = 698,967,844
  5. Step 5: Solve for x
    x = 698,967,844/12,122
  6. Step 6: Final answer
    x = 57,661.10

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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.