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Finding the Third Proportional to 16,924 and 18,364

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Solution

The third proportional to 16,924 and 18,364 is: 19,926.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,924 : 18,364 = 18,364 : x
  2. Step 2: Convert to fraction form
    16,924/18,364 = 18,364/x
  3. Step 3: Cross multiply
    16,924x = 18,364 × 18,364
  4. Step 4: Simplify right side
    16,924x = 337,236,496
  5. Step 5: Solve for x
    x = 337,236,496/16,924
  6. Step 6: Final answer
    x = 19,926.52

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.