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Finding the Third Proportional to 3,651.75 and 4,479.75

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Solution

The third proportional to 3,651.75 and 4,479.75 is: 5,495.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,651.75 : 4,479.75 = 4,479.75 : x
  2. Step 2: Convert to fraction form
    3,651.75/4,479.75 = 4,479.75/x
  3. Step 3: Cross multiply
    3,651.75x = 4,479.75 × 4,479.75
  4. Step 4: Simplify right side
    3,651.75x = 20,068,160.06
  5. Step 5: Solve for x
    x = 20,068,160.06/3,651.75
  6. Step 6: Final answer
    x = 5,495.49

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Why These Related Problems?

These problems maintain the same ratio (1.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.