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Finding the Third Proportional to 4,978 and 7,466

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Solution

The third proportional to 4,978 and 7,466 is: 11,197.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,978 : 7,466 = 7,466 : x
  2. Step 2: Convert to fraction form
    4,978/7,466 = 7,466/x
  3. Step 3: Cross multiply
    4,978x = 7,466 × 7,466
  4. Step 4: Simplify right side
    4,978x = 55,741,156
  5. Step 5: Solve for x
    x = 55,741,156/4,978
  6. Step 6: Final answer
    x = 11,197.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.