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Finding the Third Proportional to 13,858 and 18,924

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Solution

The third proportional to 13,858 and 18,924 is: 25,841.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,858 : 18,924 = 18,924 : x
  2. Step 2: Convert to fraction form
    13,858/18,924 = 18,924/x
  3. Step 3: Cross multiply
    13,858x = 18,924 × 18,924
  4. Step 4: Simplify right side
    13,858x = 358,117,776
  5. Step 5: Solve for x
    x = 358,117,776/13,858
  6. Step 6: Final answer
    x = 25,841.95

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.