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Finding the Third Proportional to 27,672 and 43,236

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Solution

The third proportional to 27,672 and 43,236 is: 67,553.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,672 : 43,236 = 43,236 : x
  2. Step 2: Convert to fraction form
    27,672/43,236 = 43,236/x
  3. Step 3: Cross multiply
    27,672x = 43,236 × 43,236
  4. Step 4: Simplify right side
    27,672x = 1,869,351,696
  5. Step 5: Solve for x
    x = 1,869,351,696/27,672
  6. Step 6: Final answer
    x = 67,553.91

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.