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Finding the Third Proportional to 3,668.63 and 7,791.75

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Solution

The third proportional to 3,668.63 and 7,791.75 is: 16,548.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,668.63 : 7,791.75 = 7,791.75 : x
  2. Step 2: Convert to fraction form
    3,668.63/7,791.75 = 7,791.75/x
  3. Step 3: Cross multiply
    3,668.63x = 7,791.75 × 7,791.75
  4. Step 4: Simplify right side
    3,668.63x = 60,711,368.06
  5. Step 5: Solve for x
    x = 60,711,368.06/3,668.63
  6. Step 6: Final answer
    x = 16,548.81

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.