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Finding the Third Proportional to 1,214.56 and 2,614.97

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Solution

The third proportional to 1,214.56 and 2,614.97 is: 5,630.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214.56 : 2,614.97 = 2,614.97 : x
  2. Step 2: Convert to fraction form
    1,214.56/2,614.97 = 2,614.97/x
  3. Step 3: Cross multiply
    1,214.56x = 2,614.97 × 2,614.97
  4. Step 4: Simplify right side
    1,214.56x = 6,838,061.56
  5. Step 5: Solve for x
    x = 6,838,061.56/1,214.56
  6. Step 6: Final answer
    x = 5,630.06

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.