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Finding the Third Proportional to 7,764 and 16,944

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Solution

The third proportional to 7,764 and 16,944 is: 36,978.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,764 : 16,944 = 16,944 : x
  2. Step 2: Convert to fraction form
    7,764/16,944 = 16,944/x
  3. Step 3: Cross multiply
    7,764x = 16,944 × 16,944
  4. Step 4: Simplify right side
    7,764x = 287,099,136
  5. Step 5: Solve for x
    x = 287,099,136/7,764
  6. Step 6: Final answer
    x = 36,978.25

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.