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Finding the Third Proportional to 1,494 and 2,800

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Solution

The third proportional to 1,494 and 2,800 is: 5,247.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,494 : 2,800 = 2,800 : x
  2. Step 2: Convert to fraction form
    1,494/2,800 = 2,800/x
  3. Step 3: Cross multiply
    1,494x = 2,800 × 2,800
  4. Step 4: Simplify right side
    1,494x = 7,840,000
  5. Step 5: Solve for x
    x = 7,840,000/1,494
  6. Step 6: Final answer
    x = 5,247.66

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Why These Related Problems?

These problems maintain the same ratio (1.87) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.