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Finding the Third Proportional to 5,638 and 12,106

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Solution

The third proportional to 5,638 and 12,106 is: 25,994.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,638 : 12,106 = 12,106 : x
  2. Step 2: Convert to fraction form
    5,638/12,106 = 12,106/x
  3. Step 3: Cross multiply
    5,638x = 12,106 × 12,106
  4. Step 4: Simplify right side
    5,638x = 146,555,236
  5. Step 5: Solve for x
    x = 146,555,236/5,638
  6. Step 6: Final answer
    x = 25,994.19

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.