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Finding the Third Proportional to 27,252 and 42,212

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Solution

The third proportional to 27,252 and 42,212 is: 65,384.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,252 : 42,212 = 42,212 : x
  2. Step 2: Convert to fraction form
    27,252/42,212 = 42,212/x
  3. Step 3: Cross multiply
    27,252x = 42,212 × 42,212
  4. Step 4: Simplify right side
    27,252x = 1,781,852,944
  5. Step 5: Solve for x
    x = 1,781,852,944/27,252
  6. Step 6: Final answer
    x = 65,384.30

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.