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Finding the Third Proportional to 2,005.13 and 3,086.06

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Solution

The third proportional to 2,005.13 and 3,086.06 is: 4,749.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,005.13 : 3,086.06 = 3,086.06 : x
  2. Step 2: Convert to fraction form
    2,005.13/3,086.06 = 3,086.06/x
  3. Step 3: Cross multiply
    2,005.13x = 3,086.06 × 3,086.06
  4. Step 4: Simplify right side
    2,005.13x = 9,523,781.75
  5. Step 5: Solve for x
    x = 9,523,781.75/2,005.13
  6. Step 6: Final answer
    x = 4,749.72

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.