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Finding the Third Proportional to 32,220 and 45,372

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Solution

The third proportional to 32,220 and 45,372 is: 63,892.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,220 : 45,372 = 45,372 : x
  2. Step 2: Convert to fraction form
    32,220/45,372 = 45,372/x
  3. Step 3: Cross multiply
    32,220x = 45,372 × 45,372
  4. Step 4: Simplify right side
    32,220x = 2,058,618,384
  5. Step 5: Solve for x
    x = 2,058,618,384/32,220
  6. Step 6: Final answer
    x = 63,892.56

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.