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Finding the Third Proportional to 13,888 and 18,668

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Solution

The third proportional to 13,888 and 18,668 is: 25,093.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,888 : 18,668 = 18,668 : x
  2. Step 2: Convert to fraction form
    13,888/18,668 = 18,668/x
  3. Step 3: Cross multiply
    13,888x = 18,668 × 18,668
  4. Step 4: Simplify right side
    13,888x = 348,494,224
  5. Step 5: Solve for x
    x = 348,494,224/13,888
  6. Step 6: Final answer
    x = 25,093.19

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.