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Finding the Third Proportional to 49,873 and 74,640

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Solution

The third proportional to 49,873 and 74,640 is: 111,706.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,873 : 74,640 = 74,640 : x
  2. Step 2: Convert to fraction form
    49,873/74,640 = 74,640/x
  3. Step 3: Cross multiply
    49,873x = 74,640 × 74,640
  4. Step 4: Simplify right side
    49,873x = 5,571,129,600
  5. Step 5: Solve for x
    x = 5,571,129,600/49,873
  6. Step 6: Final answer
    x = 111,706.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.