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Finding the Third Proportional to 1,066.35 and 2,217.85

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Solution

The third proportional to 1,066.35 and 2,217.85 is: 4,612.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,066.35 : 2,217.85 = 2,217.85 : x
  2. Step 2: Convert to fraction form
    1,066.35/2,217.85 = 2,217.85/x
  3. Step 3: Cross multiply
    1,066.35x = 2,217.85 × 2,217.85
  4. Step 4: Simplify right side
    1,066.35x = 4,918,865.11
  5. Step 5: Solve for x
    x = 4,918,865.11/1,066.35
  6. Step 6: Final answer
    x = 4,612.79

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.