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Finding the Third Proportional to 4,234 and 8,909

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Solution

The third proportional to 4,234 and 8,909 is: 18,745.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,234 : 8,909 = 8,909 : x
  2. Step 2: Convert to fraction form
    4,234/8,909 = 8,909/x
  3. Step 3: Cross multiply
    4,234x = 8,909 × 8,909
  4. Step 4: Simplify right side
    4,234x = 79,370,281
  5. Step 5: Solve for x
    x = 79,370,281/4,234
  6. Step 6: Final answer
    x = 18,745.93

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These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.