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Finding the Third Proportional to 21,966 and 47,364

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Solution

The third proportional to 21,966 and 47,364 is: 102,128.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,966 : 47,364 = 47,364 : x
  2. Step 2: Convert to fraction form
    21,966/47,364 = 47,364/x
  3. Step 3: Cross multiply
    21,966x = 47,364 × 47,364
  4. Step 4: Simplify right side
    21,966x = 2,243,348,496
  5. Step 5: Solve for x
    x = 2,243,348,496/21,966
  6. Step 6: Final answer
    x = 102,128.22

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.