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Finding the Third Proportional to 10,489.50 and 22,821

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Solution

The third proportional to 10,489.50 and 22,821 is: 49,649.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,489.50 : 22,821 = 22,821 : x
  2. Step 2: Convert to fraction form
    10,489.50/22,821 = 22,821/x
  3. Step 3: Cross multiply
    10,489.50x = 22,821 × 22,821
  4. Step 4: Simplify right side
    10,489.50x = 520,798,041
  5. Step 5: Solve for x
    x = 520,798,041/10,489.50
  6. Step 6: Final answer
    x = 49,649.46

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.