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Finding the Third Proportional to 5,687 and 8,536

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Solution

The third proportional to 5,687 and 8,536 is: 12,812.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,687 : 8,536 = 8,536 : x
  2. Step 2: Convert to fraction form
    5,687/8,536 = 8,536/x
  3. Step 3: Cross multiply
    5,687x = 8,536 × 8,536
  4. Step 4: Simplify right side
    5,687x = 72,863,296
  5. Step 5: Solve for x
    x = 72,863,296/5,687
  6. Step 6: Final answer
    x = 12,812.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.