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Finding the Third Proportional to 21,340 and 49,612

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Solution

The third proportional to 21,340 and 49,612 is: 115,339.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,340 : 49,612 = 49,612 : x
  2. Step 2: Convert to fraction form
    21,340/49,612 = 49,612/x
  3. Step 3: Cross multiply
    21,340x = 49,612 × 49,612
  4. Step 4: Simplify right side
    21,340x = 2,461,350,544
  5. Step 5: Solve for x
    x = 2,461,350,544/21,340
  6. Step 6: Final answer
    x = 115,339.76

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.