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Finding the Third Proportional to 36,990 and 80,889

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Solution

The third proportional to 36,990 and 80,889 is: 176,886.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,990 : 80,889 = 80,889 : x
  2. Step 2: Convert to fraction form
    36,990/80,889 = 80,889/x
  3. Step 3: Cross multiply
    36,990x = 80,889 × 80,889
  4. Step 4: Simplify right side
    36,990x = 6,543,030,321
  5. Step 5: Solve for x
    x = 6,543,030,321/36,990
  6. Step 6: Final answer
    x = 176,886.46

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.