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Finding the Third Proportional to 4,558 and 7,449

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Solution

The third proportional to 4,558 and 7,449 is: 12,173.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,558 : 7,449 = 7,449 : x
  2. Step 2: Convert to fraction form
    4,558/7,449 = 7,449/x
  3. Step 3: Cross multiply
    4,558x = 7,449 × 7,449
  4. Step 4: Simplify right side
    4,558x = 55,487,601
  5. Step 5: Solve for x
    x = 55,487,601/4,558
  6. Step 6: Final answer
    x = 12,173.67

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.