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Finding the Third Proportional to 19,880 and 22,376

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Solution

The third proportional to 19,880 and 22,376 is: 25,185.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,880 : 22,376 = 22,376 : x
  2. Step 2: Convert to fraction form
    19,880/22,376 = 22,376/x
  3. Step 3: Cross multiply
    19,880x = 22,376 × 22,376
  4. Step 4: Simplify right side
    19,880x = 500,685,376
  5. Step 5: Solve for x
    x = 500,685,376/19,880
  6. Step 6: Final answer
    x = 25,185.38

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Why These Related Problems?

These problems maintain the same ratio (1.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.