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Finding the Third Proportional to 4,186.69 and 5,475.09

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Solution

The third proportional to 4,186.69 and 5,475.09 is: 7,159.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,186.69 : 5,475.09 = 5,475.09 : x
  2. Step 2: Convert to fraction form
    4,186.69/5,475.09 = 5,475.09/x
  3. Step 3: Cross multiply
    4,186.69x = 5,475.09 × 5,475.09
  4. Step 4: Simplify right side
    4,186.69x = 29,976,651.57
  5. Step 5: Solve for x
    x = 29,976,651.57/4,186.69
  6. Step 6: Final answer
    x = 7,159.99

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.