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Finding the Third Proportional to 16,812 and 19,242

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Solution

The third proportional to 16,812 and 19,242 is: 22,023.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,812 : 19,242 = 19,242 : x
  2. Step 2: Convert to fraction form
    16,812/19,242 = 19,242/x
  3. Step 3: Cross multiply
    16,812x = 19,242 × 19,242
  4. Step 4: Simplify right side
    16,812x = 370,254,564
  5. Step 5: Solve for x
    x = 370,254,564/16,812
  6. Step 6: Final answer
    x = 22,023.23

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Why These Related Problems?

These problems maintain the same ratio (1.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.