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Finding the Third Proportional to 2,116 and 3,255

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Solution

The third proportional to 2,116 and 3,255 is: 5,007.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116 : 3,255 = 3,255 : x
  2. Step 2: Convert to fraction form
    2,116/3,255 = 3,255/x
  3. Step 3: Cross multiply
    2,116x = 3,255 × 3,255
  4. Step 4: Simplify right side
    2,116x = 10,595,025
  5. Step 5: Solve for x
    x = 10,595,025/2,116
  6. Step 6: Final answer
    x = 5,007.10

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.