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Finding the Third Proportional to 49,650 and 76,689

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Solution

The third proportional to 49,650 and 76,689 is: 118,453.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,650 : 76,689 = 76,689 : x
  2. Step 2: Convert to fraction form
    49,650/76,689 = 76,689/x
  3. Step 3: Cross multiply
    49,650x = 76,689 × 76,689
  4. Step 4: Simplify right side
    49,650x = 5,881,202,721
  5. Step 5: Solve for x
    x = 5,881,202,721/49,650
  6. Step 6: Final answer
    x = 118,453.23

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.