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Finding the Third Proportional to 36,990 and 52,340

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Solution

The third proportional to 36,990 and 52,340 is: 74,059.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,990 : 52,340 = 52,340 : x
  2. Step 2: Convert to fraction form
    36,990/52,340 = 52,340/x
  3. Step 3: Cross multiply
    36,990x = 52,340 × 52,340
  4. Step 4: Simplify right side
    36,990x = 2,739,475,600
  5. Step 5: Solve for x
    x = 2,739,475,600/36,990
  6. Step 6: Final answer
    x = 74,059.90

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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.