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Finding the Third Proportional to 10,778.06 and 14,385.09

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Solution

The third proportional to 10,778.06 and 14,385.09 is: 19,199.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,778.06 : 14,385.09 = 14,385.09 : x
  2. Step 2: Convert to fraction form
    10,778.06/14,385.09 = 14,385.09/x
  3. Step 3: Cross multiply
    10,778.06x = 14,385.09 × 14,385.09
  4. Step 4: Simplify right side
    10,778.06x = 206,930,922.20
  5. Step 5: Solve for x
    x = 206,930,922.20/10,778.06
  6. Step 6: Final answer
    x = 19,199.27

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.