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Finding the Third Proportional to 31,936 and 70,150

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Solution

The third proportional to 31,936 and 70,150 is: 154,090.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,936 : 70,150 = 70,150 : x
  2. Step 2: Convert to fraction form
    31,936/70,150 = 70,150/x
  3. Step 3: Cross multiply
    31,936x = 70,150 × 70,150
  4. Step 4: Simplify right side
    31,936x = 4,921,022,500
  5. Step 5: Solve for x
    x = 4,921,022,500/31,936
  6. Step 6: Final answer
    x = 154,090.13

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.