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Finding the Third Proportional to 4,234 and 8,396

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Solution

The third proportional to 4,234 and 8,396 is: 16,649.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,234 : 8,396 = 8,396 : x
  2. Step 2: Convert to fraction form
    4,234/8,396 = 8,396/x
  3. Step 3: Cross multiply
    4,234x = 8,396 × 8,396
  4. Step 4: Simplify right side
    4,234x = 70,492,816
  5. Step 5: Solve for x
    x = 70,492,816/4,234
  6. Step 6: Final answer
    x = 16,649.22

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Why These Related Problems?

These problems maintain the same ratio (1.98) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.