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Finding the Third Proportional to 38,971.50 and 84,162

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Solution

The third proportional to 38,971.50 and 84,162 is: 181,754.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,971.50 : 84,162 = 84,162 : x
  2. Step 2: Convert to fraction form
    38,971.50/84,162 = 84,162/x
  3. Step 3: Cross multiply
    38,971.50x = 84,162 × 84,162
  4. Step 4: Simplify right side
    38,971.50x = 7,083,242,244
  5. Step 5: Solve for x
    x = 7,083,242,244/38,971.50
  6. Step 6: Final answer
    x = 181,754.42

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.