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Finding the Third Proportional to 16,828 and 26,129

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Solution

The third proportional to 16,828 and 26,129 is: 40,570.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,828 : 26,129 = 26,129 : x
  2. Step 2: Convert to fraction form
    16,828/26,129 = 26,129/x
  3. Step 3: Cross multiply
    16,828x = 26,129 × 26,129
  4. Step 4: Simplify right side
    16,828x = 682,724,641
  5. Step 5: Solve for x
    x = 682,724,641/16,828
  6. Step 6: Final answer
    x = 40,570.75

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.