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Finding the Third Proportional to 474 and 1,200

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Solution

The third proportional to 474 and 1,200 is: 3,037.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    474 : 1,200 = 1,200 : x
  2. Step 2: Convert to fraction form
    474/1,200 = 1,200/x
  3. Step 3: Cross multiply
    474x = 1,200 × 1,200
  4. Step 4: Simplify right side
    474x = 1,440,000
  5. Step 5: Solve for x
    x = 1,440,000/474
  6. Step 6: Final answer
    x = 3,037.97

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Why These Related Problems?

These problems maintain the same ratio (2.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.