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Finding the Third Proportional to 4,026 and 8,739

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Solution

The third proportional to 4,026 and 8,739 is: 18,969.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,026 : 8,739 = 8,739 : x
  2. Step 2: Convert to fraction form
    4,026/8,739 = 8,739/x
  3. Step 3: Cross multiply
    4,026x = 8,739 × 8,739
  4. Step 4: Simplify right side
    4,026x = 76,370,121
  5. Step 5: Solve for x
    x = 76,370,121/4,026
  6. Step 6: Final answer
    x = 18,969.23

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.