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Finding the Third Proportional to 31,698 and 48,393

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Solution

The third proportional to 31,698 and 48,393 is: 73,881.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,698 : 48,393 = 48,393 : x
  2. Step 2: Convert to fraction form
    31,698/48,393 = 48,393/x
  3. Step 3: Cross multiply
    31,698x = 48,393 × 48,393
  4. Step 4: Simplify right side
    31,698x = 2,341,882,449
  5. Step 5: Solve for x
    x = 2,341,882,449/31,698
  6. Step 6: Final answer
    x = 73,881.08

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.