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Finding the Third Proportional to 816 and 2,088

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Solution

The third proportional to 816 and 2,088 is: 5,342.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    816 : 2,088 = 2,088 : x
  2. Step 2: Convert to fraction form
    816/2,088 = 2,088/x
  3. Step 3: Cross multiply
    816x = 2,088 × 2,088
  4. Step 4: Simplify right side
    816x = 4,359,744
  5. Step 5: Solve for x
    x = 4,359,744/816
  6. Step 6: Final answer
    x = 5,342.82

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Why These Related Problems?

These problems maintain the same ratio (2.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.