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Finding the Third Proportional to 21,943 and 47,612

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Solution

The third proportional to 21,943 and 47,612 is: 103,308.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,943 : 47,612 = 47,612 : x
  2. Step 2: Convert to fraction form
    21,943/47,612 = 47,612/x
  3. Step 3: Cross multiply
    21,943x = 47,612 × 47,612
  4. Step 4: Simplify right side
    21,943x = 2,266,902,544
  5. Step 5: Solve for x
    x = 2,266,902,544/21,943
  6. Step 6: Final answer
    x = 103,308.69

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.