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Finding the Third Proportional to 65,378 and 97,979

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Solution

The third proportional to 65,378 and 97,979 is: 146,836.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,378 : 97,979 = 97,979 : x
  2. Step 2: Convert to fraction form
    65,378/97,979 = 97,979/x
  3. Step 3: Cross multiply
    65,378x = 97,979 × 97,979
  4. Step 4: Simplify right side
    65,378x = 9,599,884,441
  5. Step 5: Solve for x
    x = 9,599,884,441/65,378
  6. Step 6: Final answer
    x = 146,836.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.