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Finding the Third Proportional to 5,474 and 8,358

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Solution

The third proportional to 5,474 and 8,358 is: 12,761.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,474 : 8,358 = 8,358 : x
  2. Step 2: Convert to fraction form
    5,474/8,358 = 8,358/x
  3. Step 3: Cross multiply
    5,474x = 8,358 × 8,358
  4. Step 4: Simplify right side
    5,474x = 69,856,164
  5. Step 5: Solve for x
    x = 69,856,164/5,474
  6. Step 6: Final answer
    x = 12,761.45

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.