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Finding the Third Proportional to 20,346 and 43,320

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Solution

The third proportional to 20,346 and 43,320 is: 92,235.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,346 : 43,320 = 43,320 : x
  2. Step 2: Convert to fraction form
    20,346/43,320 = 43,320/x
  3. Step 3: Cross multiply
    20,346x = 43,320 × 43,320
  4. Step 4: Simplify right side
    20,346x = 1,876,622,400
  5. Step 5: Solve for x
    x = 1,876,622,400/20,346
  6. Step 6: Final answer
    x = 92,235.45

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.