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Finding the Third Proportional to 2,116.76 and 2,494.55

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Solution

The third proportional to 2,116.76 and 2,494.55 is: 2,939.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116.76 : 2,494.55 = 2,494.55 : x
  2. Step 2: Convert to fraction form
    2,116.76/2,494.55 = 2,494.55/x
  3. Step 3: Cross multiply
    2,116.76x = 2,494.55 × 2,494.55
  4. Step 4: Simplify right side
    2,116.76x = 6,222,764.11
  5. Step 5: Solve for x
    x = 6,222,764.11/2,116.76
  6. Step 6: Final answer
    x = 2,939.76

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Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.