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Finding the Third Proportional to 13,616 and 21,935

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Solution

The third proportional to 13,616 and 21,935 is: 35,336.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,616 : 21,935 = 21,935 : x
  2. Step 2: Convert to fraction form
    13,616/21,935 = 21,935/x
  3. Step 3: Cross multiply
    13,616x = 21,935 × 21,935
  4. Step 4: Simplify right side
    13,616x = 481,144,225
  5. Step 5: Solve for x
    x = 481,144,225/13,616
  6. Step 6: Final answer
    x = 35,336.68

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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.