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Finding the Third Proportional to 18,814.50 and 29,166.75

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Solution

The third proportional to 18,814.50 and 29,166.75 is: 45,215.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,814.50 : 29,166.75 = 29,166.75 : x
  2. Step 2: Convert to fraction form
    18,814.50/29,166.75 = 29,166.75/x
  3. Step 3: Cross multiply
    18,814.50x = 29,166.75 × 29,166.75
  4. Step 4: Simplify right side
    18,814.50x = 850,699,305.56
  5. Step 5: Solve for x
    x = 850,699,305.56/18,814.50
  6. Step 6: Final answer
    x = 45,215.09

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.