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Finding the Third Proportional to 816 and 1,752

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Solution

The third proportional to 816 and 1,752 is: 3,761.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    816 : 1,752 = 1,752 : x
  2. Step 2: Convert to fraction form
    816/1,752 = 1,752/x
  3. Step 3: Cross multiply
    816x = 1,752 × 1,752
  4. Step 4: Simplify right side
    816x = 3,069,504
  5. Step 5: Solve for x
    x = 3,069,504/816
  6. Step 6: Final answer
    x = 3,761.65

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.