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Finding the Third Proportional to 4,254 and 9,212

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Solution

The third proportional to 4,254 and 9,212 is: 19,948.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,254 : 9,212 = 9,212 : x
  2. Step 2: Convert to fraction form
    4,254/9,212 = 9,212/x
  3. Step 3: Cross multiply
    4,254x = 9,212 × 9,212
  4. Step 4: Simplify right side
    4,254x = 84,860,944
  5. Step 5: Solve for x
    x = 84,860,944/4,254
  6. Step 6: Final answer
    x = 19,948.51

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.