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Finding the Third Proportional to 4,286 and 8,113

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Solution

The third proportional to 4,286 and 8,113 is: 15,357.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,286 : 8,113 = 8,113 : x
  2. Step 2: Convert to fraction form
    4,286/8,113 = 8,113/x
  3. Step 3: Cross multiply
    4,286x = 8,113 × 8,113
  4. Step 4: Simplify right side
    4,286x = 65,820,769
  5. Step 5: Solve for x
    x = 65,820,769/4,286
  6. Step 6: Final answer
    x = 15,357.16

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Why These Related Problems?

These problems maintain the same ratio (1.89) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.