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Finding the Third Proportional to 11,840.50 and 18,166

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Solution

The third proportional to 11,840.50 and 18,166 is: 27,870.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,840.50 : 18,166 = 18,166 : x
  2. Step 2: Convert to fraction form
    11,840.50/18,166 = 18,166/x
  3. Step 3: Cross multiply
    11,840.50x = 18,166 × 18,166
  4. Step 4: Simplify right side
    11,840.50x = 330,003,556
  5. Step 5: Solve for x
    x = 330,003,556/11,840.50
  6. Step 6: Final answer
    x = 27,870.74

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.