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Finding the Third Proportional to 3,663 and 4,047.75

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Solution

The third proportional to 3,663 and 4,047.75 is: 4,472.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,663 : 4,047.75 = 4,047.75 : x
  2. Step 2: Convert to fraction form
    3,663/4,047.75 = 4,047.75/x
  3. Step 3: Cross multiply
    3,663x = 4,047.75 × 4,047.75
  4. Step 4: Simplify right side
    3,663x = 16,384,280.06
  5. Step 5: Solve for x
    x = 16,384,280.06/3,663
  6. Step 6: Final answer
    x = 4,472.91

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Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.