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Finding the Third Proportional to 15,819 and 32,718

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Solution

The third proportional to 15,819 and 32,718 is: 67,669.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,819 : 32,718 = 32,718 : x
  2. Step 2: Convert to fraction form
    15,819/32,718 = 32,718/x
  3. Step 3: Cross multiply
    15,819x = 32,718 × 32,718
  4. Step 4: Simplify right side
    15,819x = 1,070,467,524
  5. Step 5: Solve for x
    x = 1,070,467,524/15,819
  6. Step 6: Final answer
    x = 67,669.73

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.