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Finding the Third Proportional to 33,712 and 48,990

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Solution

The third proportional to 33,712 and 48,990 is: 71,191.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,712 : 48,990 = 48,990 : x
  2. Step 2: Convert to fraction form
    33,712/48,990 = 48,990/x
  3. Step 3: Cross multiply
    33,712x = 48,990 × 48,990
  4. Step 4: Simplify right side
    33,712x = 2,400,020,100
  5. Step 5: Solve for x
    x = 2,400,020,100/33,712
  6. Step 6: Final answer
    x = 71,191.86

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.