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Finding the Third Proportional to 15,876 and 33,565.50

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Solution

The third proportional to 15,876 and 33,565.50 is: 70,965.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,876 : 33,565.50 = 33,565.50 : x
  2. Step 2: Convert to fraction form
    15,876/33,565.50 = 33,565.50/x
  3. Step 3: Cross multiply
    15,876x = 33,565.50 × 33,565.50
  4. Step 4: Simplify right side
    15,876x = 1,126,642,790.25
  5. Step 5: Solve for x
    x = 1,126,642,790.25/15,876
  6. Step 6: Final answer
    x = 70,965.15

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.