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Finding the Third Proportional to 6,939 and 15,336

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Solution

The third proportional to 6,939 and 15,336 is: 33,894.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,939 : 15,336 = 15,336 : x
  2. Step 2: Convert to fraction form
    6,939/15,336 = 15,336/x
  3. Step 3: Cross multiply
    6,939x = 15,336 × 15,336
  4. Step 4: Simplify right side
    6,939x = 235,192,896
  5. Step 5: Solve for x
    x = 235,192,896/6,939
  6. Step 6: Final answer
    x = 33,894.35

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.