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Finding the Third Proportional to 486.28 and 1,011.94

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Solution

The third proportional to 486.28 and 1,011.94 is: 2,105.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    486.28 : 1,011.94 = 1,011.94 : x
  2. Step 2: Convert to fraction form
    486.28/1,011.94 = 1,011.94/x
  3. Step 3: Cross multiply
    486.28x = 1,011.94 × 1,011.94
  4. Step 4: Simplify right side
    486.28x = 1,024,017.50
  5. Step 5: Solve for x
    x = 1,024,017.50/486.28
  6. Step 6: Final answer
    x = 2,105.81

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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.