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Finding the Third Proportional to 29,686 and 70,079

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Solution

The third proportional to 29,686 and 70,079 is: 165,433.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,686 : 70,079 = 70,079 : x
  2. Step 2: Convert to fraction form
    29,686/70,079 = 70,079/x
  3. Step 3: Cross multiply
    29,686x = 70,079 × 70,079
  4. Step 4: Simplify right side
    29,686x = 4,911,066,241
  5. Step 5: Solve for x
    x = 4,911,066,241/29,686
  6. Step 6: Final answer
    x = 165,433.75

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.