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Finding the Third Proportional to 2,611.41 and 3,917.74

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Solution

The third proportional to 2,611.41 and 3,917.74 is: 5,877.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,611.41 : 3,917.74 = 3,917.74 : x
  2. Step 2: Convert to fraction form
    2,611.41/3,917.74 = 3,917.74/x
  3. Step 3: Cross multiply
    2,611.41x = 3,917.74 × 3,917.74
  4. Step 4: Simplify right side
    2,611.41x = 15,348,703.85
  5. Step 5: Solve for x
    x = 15,348,703.85/2,611.41
  6. Step 6: Final answer
    x = 5,877.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.