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Finding the Third Proportional to 1,627.13 and 3,618.38

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Solution

The third proportional to 1,627.13 and 3,618.38 is: 8,046.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,627.13 : 3,618.38 = 3,618.38 : x
  2. Step 2: Convert to fraction form
    1,627.13/3,618.38 = 3,618.38/x
  3. Step 3: Cross multiply
    1,627.13x = 3,618.38 × 3,618.38
  4. Step 4: Simplify right side
    1,627.13x = 13,092,637.64
  5. Step 5: Solve for x
    x = 13,092,637.64/1,627.13
  6. Step 6: Final answer
    x = 8,046.49

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.