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Finding the Third Proportional to 5,255 and 7,431

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Solution

The third proportional to 5,255 and 7,431 is: 10,508.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,255 : 7,431 = 7,431 : x
  2. Step 2: Convert to fraction form
    5,255/7,431 = 7,431/x
  3. Step 3: Cross multiply
    5,255x = 7,431 × 7,431
  4. Step 4: Simplify right side
    5,255x = 55,219,761
  5. Step 5: Solve for x
    x = 55,219,761/5,255
  6. Step 6: Final answer
    x = 10,508.04

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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.