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Finding the Third Proportional to 2,910.75 and 4,017.75

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Solution

The third proportional to 2,910.75 and 4,017.75 is: 5,545.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910.75 : 4,017.75 = 4,017.75 : x
  2. Step 2: Convert to fraction form
    2,910.75/4,017.75 = 4,017.75/x
  3. Step 3: Cross multiply
    2,910.75x = 4,017.75 × 4,017.75
  4. Step 4: Simplify right side
    2,910.75x = 16,142,315.06
  5. Step 5: Solve for x
    x = 16,142,315.06/2,910.75
  6. Step 6: Final answer
    x = 5,545.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.