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Finding the Third Proportional to 14,359.25 and 20,982

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Solution

The third proportional to 14,359.25 and 20,982 is: 30,659.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,359.25 : 20,982 = 20,982 : x
  2. Step 2: Convert to fraction form
    14,359.25/20,982 = 20,982/x
  3. Step 3: Cross multiply
    14,359.25x = 20,982 × 20,982
  4. Step 4: Simplify right side
    14,359.25x = 440,244,324
  5. Step 5: Solve for x
    x = 440,244,324/14,359.25
  6. Step 6: Final answer
    x = 30,659.28

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.