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Finding the Third Proportional to 66,932 and 103,638

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Solution

The third proportional to 66,932 and 103,638 is: 160,473.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,932 : 103,638 = 103,638 : x
  2. Step 2: Convert to fraction form
    66,932/103,638 = 103,638/x
  3. Step 3: Cross multiply
    66,932x = 103,638 × 103,638
  4. Step 4: Simplify right side
    66,932x = 10,740,835,044
  5. Step 5: Solve for x
    x = 10,740,835,044/66,932
  6. Step 6: Final answer
    x = 160,473.84

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.