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Finding the Third Proportional to 4,427 and 6,650

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Solution

The third proportional to 4,427 and 6,650 is: 9,989.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,427 : 6,650 = 6,650 : x
  2. Step 2: Convert to fraction form
    4,427/6,650 = 6,650/x
  3. Step 3: Cross multiply
    4,427x = 6,650 × 6,650
  4. Step 4: Simplify right side
    4,427x = 44,222,500
  5. Step 5: Solve for x
    x = 44,222,500/4,427
  6. Step 6: Final answer
    x = 9,989.27

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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.