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Finding the Third Proportional to 4,517 and 6,447

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Solution

The third proportional to 4,517 and 6,447 is: 9,201.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,517 : 6,447 = 6,447 : x
  2. Step 2: Convert to fraction form
    4,517/6,447 = 6,447/x
  3. Step 3: Cross multiply
    4,517x = 6,447 × 6,447
  4. Step 4: Simplify right side
    4,517x = 41,563,809
  5. Step 5: Solve for x
    x = 41,563,809/4,517
  6. Step 6: Final answer
    x = 9,201.64

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.