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Finding the Third Proportional to 14,622 and 21,621

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Solution

The third proportional to 14,622 and 21,621 is: 31,970.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,622 : 21,621 = 21,621 : x
  2. Step 2: Convert to fraction form
    14,622/21,621 = 21,621/x
  3. Step 3: Cross multiply
    14,622x = 21,621 × 21,621
  4. Step 4: Simplify right side
    14,622x = 467,467,641
  5. Step 5: Solve for x
    x = 467,467,641/14,622
  6. Step 6: Final answer
    x = 31,970.16

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.