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Finding the Third Proportional to 36,336 and 51,420

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Solution

The third proportional to 36,336 and 51,420 is: 72,765.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,336 : 51,420 = 51,420 : x
  2. Step 2: Convert to fraction form
    36,336/51,420 = 51,420/x
  3. Step 3: Cross multiply
    36,336x = 51,420 × 51,420
  4. Step 4: Simplify right side
    36,336x = 2,644,016,400
  5. Step 5: Solve for x
    x = 2,644,016,400/36,336
  6. Step 6: Final answer
    x = 72,765.75

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.