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Finding the Third Proportional to 13,738 and 22,120

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Solution

The third proportional to 13,738 and 22,120 is: 35,616.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,738 : 22,120 = 22,120 : x
  2. Step 2: Convert to fraction form
    13,738/22,120 = 22,120/x
  3. Step 3: Cross multiply
    13,738x = 22,120 × 22,120
  4. Step 4: Simplify right side
    13,738x = 489,294,400
  5. Step 5: Solve for x
    x = 489,294,400/13,738
  6. Step 6: Final answer
    x = 35,616.13

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.