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Finding the Third Proportional to 5,353.50 and 8,517

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Solution

The third proportional to 5,353.50 and 8,517 is: 13,549.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,353.50 : 8,517 = 8,517 : x
  2. Step 2: Convert to fraction form
    5,353.50/8,517 = 8,517/x
  3. Step 3: Cross multiply
    5,353.50x = 8,517 × 8,517
  4. Step 4: Simplify right side
    5,353.50x = 72,539,289
  5. Step 5: Solve for x
    x = 72,539,289/5,353.50
  6. Step 6: Final answer
    x = 13,549.88

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.