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Finding the Third Proportional to 13,953 and 19,893

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Solution

The third proportional to 13,953 and 19,893 is: 28,361.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,953 : 19,893 = 19,893 : x
  2. Step 2: Convert to fraction form
    13,953/19,893 = 19,893/x
  3. Step 3: Cross multiply
    13,953x = 19,893 × 19,893
  4. Step 4: Simplify right side
    13,953x = 395,731,449
  5. Step 5: Solve for x
    x = 395,731,449/13,953
  6. Step 6: Final answer
    x = 28,361.75

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.