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Finding the Third Proportional to 49,915 and 75,393

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Solution

The third proportional to 49,915 and 75,393 is: 113,875.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,915 : 75,393 = 75,393 : x
  2. Step 2: Convert to fraction form
    49,915/75,393 = 75,393/x
  3. Step 3: Cross multiply
    49,915x = 75,393 × 75,393
  4. Step 4: Simplify right side
    49,915x = 5,684,104,449
  5. Step 5: Solve for x
    x = 5,684,104,449/49,915
  6. Step 6: Final answer
    x = 113,875.68

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.