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Finding the Third Proportional to 14,383.50 and 21,821

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Solution

The third proportional to 14,383.50 and 21,821 is: 33,104.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,383.50 : 21,821 = 21,821 : x
  2. Step 2: Convert to fraction form
    14,383.50/21,821 = 21,821/x
  3. Step 3: Cross multiply
    14,383.50x = 21,821 × 21,821
  4. Step 4: Simplify right side
    14,383.50x = 476,156,041
  5. Step 5: Solve for x
    x = 476,156,041/14,383.50
  6. Step 6: Final answer
    x = 33,104.32

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.