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Finding the Third Proportional to 3,531 and 5,255

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Solution

The third proportional to 3,531 and 5,255 is: 7,820.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,531 : 5,255 = 5,255 : x
  2. Step 2: Convert to fraction form
    3,531/5,255 = 5,255/x
  3. Step 3: Cross multiply
    3,531x = 5,255 × 5,255
  4. Step 4: Simplify right side
    3,531x = 27,615,025
  5. Step 5: Solve for x
    x = 27,615,025/3,531
  6. Step 6: Final answer
    x = 7,820.74

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.