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Finding the Third Proportional to 5,307 and 8,271

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Solution

The third proportional to 5,307 and 8,271 is: 12,890.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,307 : 8,271 = 8,271 : x
  2. Step 2: Convert to fraction form
    5,307/8,271 = 8,271/x
  3. Step 3: Cross multiply
    5,307x = 8,271 × 8,271
  4. Step 4: Simplify right side
    5,307x = 68,409,441
  5. Step 5: Solve for x
    x = 68,409,441/5,307
  6. Step 6: Final answer
    x = 12,890.42

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.