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Finding the Third Proportional to 11,956.50 and 18,927

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Solution

The third proportional to 11,956.50 and 18,927 is: 29,961.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,956.50 : 18,927 = 18,927 : x
  2. Step 2: Convert to fraction form
    11,956.50/18,927 = 18,927/x
  3. Step 3: Cross multiply
    11,956.50x = 18,927 × 18,927
  4. Step 4: Simplify right side
    11,956.50x = 358,231,329
  5. Step 5: Solve for x
    x = 358,231,329/11,956.50
  6. Step 6: Final answer
    x = 29,961.22

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.