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Finding the Third Proportional to 19,392 and 36,351

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Solution

The third proportional to 19,392 and 36,351 is: 68,141.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,392 : 36,351 = 36,351 : x
  2. Step 2: Convert to fraction form
    19,392/36,351 = 36,351/x
  3. Step 3: Cross multiply
    19,392x = 36,351 × 36,351
  4. Step 4: Simplify right side
    19,392x = 1,321,395,201
  5. Step 5: Solve for x
    x = 1,321,395,201/19,392
  6. Step 6: Final answer
    x = 68,141.25

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Why These Related Problems?

These problems maintain the same ratio (1.87) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.