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Finding the Third Proportional to 6,720 and 16,236

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Solution

The third proportional to 6,720 and 16,236 is: 39,227.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,720 : 16,236 = 16,236 : x
  2. Step 2: Convert to fraction form
    6,720/16,236 = 16,236/x
  3. Step 3: Cross multiply
    6,720x = 16,236 × 16,236
  4. Step 4: Simplify right side
    6,720x = 263,607,696
  5. Step 5: Solve for x
    x = 263,607,696/6,720
  6. Step 6: Final answer
    x = 39,227.34

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Why These Related Problems?

These problems maintain the same ratio (2.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.