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Finding the Third Proportional to 18,992 and 30,336

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Solution

The third proportional to 18,992 and 30,336 is: 48,455.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,992 : 30,336 = 30,336 : x
  2. Step 2: Convert to fraction form
    18,992/30,336 = 30,336/x
  3. Step 3: Cross multiply
    18,992x = 30,336 × 30,336
  4. Step 4: Simplify right side
    18,992x = 920,272,896
  5. Step 5: Solve for x
    x = 920,272,896/18,992
  6. Step 6: Final answer
    x = 48,455.82

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.