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Finding the Third Proportional to 15,756 and 22,275

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Solution

The third proportional to 15,756 and 22,275 is: 31,491.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,756 : 22,275 = 22,275 : x
  2. Step 2: Convert to fraction form
    15,756/22,275 = 22,275/x
  3. Step 3: Cross multiply
    15,756x = 22,275 × 22,275
  4. Step 4: Simplify right side
    15,756x = 496,175,625
  5. Step 5: Solve for x
    x = 496,175,625/15,756
  6. Step 6: Final answer
    x = 31,491.22

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.