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Finding the Third Proportional to 2,712.75 and 5,587.13

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Solution

The third proportional to 2,712.75 and 5,587.13 is: 11,507.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712.75 : 5,587.13 = 5,587.13 : x
  2. Step 2: Convert to fraction form
    2,712.75/5,587.13 = 5,587.13/x
  3. Step 3: Cross multiply
    2,712.75x = 5,587.13 × 5,587.13
  4. Step 4: Simplify right side
    2,712.75x = 31,215,965.77
  5. Step 5: Solve for x
    x = 31,215,965.77/2,712.75
  6. Step 6: Final answer
    x = 11,507.13

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.