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Finding the Third Proportional to 4,398 and 9,555

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Solution

The third proportional to 4,398 and 9,555 is: 20,758.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,398 : 9,555 = 9,555 : x
  2. Step 2: Convert to fraction form
    4,398/9,555 = 9,555/x
  3. Step 3: Cross multiply
    4,398x = 9,555 × 9,555
  4. Step 4: Simplify right side
    4,398x = 91,298,025
  5. Step 5: Solve for x
    x = 91,298,025/4,398
  6. Step 6: Final answer
    x = 20,758.99

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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.