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Finding the Third Proportional to 66,422 and 98,692

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Solution

The third proportional to 66,422 and 98,692 is: 146,639.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,422 : 98,692 = 98,692 : x
  2. Step 2: Convert to fraction form
    66,422/98,692 = 98,692/x
  3. Step 3: Cross multiply
    66,422x = 98,692 × 98,692
  4. Step 4: Simplify right side
    66,422x = 9,740,110,864
  5. Step 5: Solve for x
    x = 9,740,110,864/66,422
  6. Step 6: Final answer
    x = 146,639.83

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.