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Finding the Third Proportional to 4,591 and 7,908

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Solution

The third proportional to 4,591 and 7,908 is: 13,621.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,591 : 7,908 = 7,908 : x
  2. Step 2: Convert to fraction form
    4,591/7,908 = 7,908/x
  3. Step 3: Cross multiply
    4,591x = 7,908 × 7,908
  4. Step 4: Simplify right side
    4,591x = 62,536,464
  5. Step 5: Solve for x
    x = 62,536,464/4,591
  6. Step 6: Final answer
    x = 13,621.53

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Why These Related Problems?

These problems maintain the same ratio (1.72) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.