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Finding the Third Proportional to 10,246.50 and 20,869

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Solution

The third proportional to 10,246.50 and 20,869 is: 42,503.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,246.50 : 20,869 = 20,869 : x
  2. Step 2: Convert to fraction form
    10,246.50/20,869 = 20,869/x
  3. Step 3: Cross multiply
    10,246.50x = 20,869 × 20,869
  4. Step 4: Simplify right side
    10,246.50x = 435,515,161
  5. Step 5: Solve for x
    x = 435,515,161/10,246.50
  6. Step 6: Final answer
    x = 42,503.80

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.