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Finding the Third Proportional to 31,992 and 70,203

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Solution

The third proportional to 31,992 and 70,203 is: 154,052.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,992 : 70,203 = 70,203 : x
  2. Step 2: Convert to fraction form
    31,992/70,203 = 70,203/x
  3. Step 3: Cross multiply
    31,992x = 70,203 × 70,203
  4. Step 4: Simplify right side
    31,992x = 4,928,461,209
  5. Step 5: Solve for x
    x = 4,928,461,209/31,992
  6. Step 6: Final answer
    x = 154,052.93

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.