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Finding the Third Proportional to 49,960 and 75,478

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Solution

The third proportional to 49,960 and 75,478 is: 114,029.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,960 : 75,478 = 75,478 : x
  2. Step 2: Convert to fraction form
    49,960/75,478 = 75,478/x
  3. Step 3: Cross multiply
    49,960x = 75,478 × 75,478
  4. Step 4: Simplify right side
    49,960x = 5,696,928,484
  5. Step 5: Solve for x
    x = 5,696,928,484/49,960
  6. Step 6: Final answer
    x = 114,029.79

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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.