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Finding the Third Proportional to 3,072 and 4,884

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Solution

The third proportional to 3,072 and 4,884 is: 7,764.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072 : 4,884 = 4,884 : x
  2. Step 2: Convert to fraction form
    3,072/4,884 = 4,884/x
  3. Step 3: Cross multiply
    3,072x = 4,884 × 4,884
  4. Step 4: Simplify right side
    3,072x = 23,853,456
  5. Step 5: Solve for x
    x = 23,853,456/3,072
  6. Step 6: Final answer
    x = 7,764.80

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.