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Finding the Third Proportional to 462 and 1,200

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Solution

The third proportional to 462 and 1,200 is: 3,116.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    462 : 1,200 = 1,200 : x
  2. Step 2: Convert to fraction form
    462/1,200 = 1,200/x
  3. Step 3: Cross multiply
    462x = 1,200 × 1,200
  4. Step 4: Simplify right side
    462x = 1,440,000
  5. Step 5: Solve for x
    x = 1,440,000/462
  6. Step 6: Final answer
    x = 3,116.88

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Why These Related Problems?

These problems maintain the same ratio (2.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.