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Finding the Third Proportional to 66,016 and 87,998

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Solution

The third proportional to 66,016 and 87,998 is: 117,299.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,016 : 87,998 = 87,998 : x
  2. Step 2: Convert to fraction form
    66,016/87,998 = 87,998/x
  3. Step 3: Cross multiply
    66,016x = 87,998 × 87,998
  4. Step 4: Simplify right side
    66,016x = 7,743,648,004
  5. Step 5: Solve for x
    x = 7,743,648,004/66,016
  6. Step 6: Final answer
    x = 117,299.56

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.