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Finding the Third Proportional to 36,390 and 79,953

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Solution

The third proportional to 36,390 and 79,953 is: 175,665.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,390 : 79,953 = 79,953 : x
  2. Step 2: Convert to fraction form
    36,390/79,953 = 79,953/x
  3. Step 3: Cross multiply
    36,390x = 79,953 × 79,953
  4. Step 4: Simplify right side
    36,390x = 6,392,482,209
  5. Step 5: Solve for x
    x = 6,392,482,209/36,390
  6. Step 6: Final answer
    x = 175,665.90

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.