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Finding the Third Proportional to 36,591 and 74,910

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Solution

The third proportional to 36,591 and 74,910 is: 153,357.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,591 : 74,910 = 74,910 : x
  2. Step 2: Convert to fraction form
    36,591/74,910 = 74,910/x
  3. Step 3: Cross multiply
    36,591x = 74,910 × 74,910
  4. Step 4: Simplify right side
    36,591x = 5,611,508,100
  5. Step 5: Solve for x
    x = 5,611,508,100/36,591
  6. Step 6: Final answer
    x = 153,357.60

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.