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Finding the Third Proportional to 14,361 and 20,880

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Solution

The third proportional to 14,361 and 20,880 is: 30,358.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,361 : 20,880 = 20,880 : x
  2. Step 2: Convert to fraction form
    14,361/20,880 = 20,880/x
  3. Step 3: Cross multiply
    14,361x = 20,880 × 20,880
  4. Step 4: Simplify right side
    14,361x = 435,974,400
  5. Step 5: Solve for x
    x = 435,974,400/14,361
  6. Step 6: Final answer
    x = 30,358.22

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.