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Finding the Third Proportional to 5,521 and 10,763

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Solution

The third proportional to 5,521 and 10,763 is: 20,982.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,521 : 10,763 = 10,763 : x
  2. Step 2: Convert to fraction form
    5,521/10,763 = 10,763/x
  3. Step 3: Cross multiply
    5,521x = 10,763 × 10,763
  4. Step 4: Simplify right side
    5,521x = 115,842,169
  5. Step 5: Solve for x
    x = 115,842,169/5,521
  6. Step 6: Final answer
    x = 20,982.10

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.