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Finding the Third Proportional to 976.88 and 2,149.13

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Solution

The third proportional to 976.88 and 2,149.13 is: 4,728.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    976.88 : 2,149.13 = 2,149.13 : x
  2. Step 2: Convert to fraction form
    976.88/2,149.13 = 2,149.13/x
  3. Step 3: Cross multiply
    976.88x = 2,149.13 × 2,149.13
  4. Step 4: Simplify right side
    976.88x = 4,618,738.27
  5. Step 5: Solve for x
    x = 4,618,738.27/976.88
  6. Step 6: Final answer
    x = 4,728.08

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.