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Finding the Third Proportional to 3,720.94 and 5,649.75

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Solution

The third proportional to 3,720.94 and 5,649.75 is: 8,578.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.94 : 5,649.75 = 5,649.75 : x
  2. Step 2: Convert to fraction form
    3,720.94/5,649.75 = 5,649.75/x
  3. Step 3: Cross multiply
    3,720.94x = 5,649.75 × 5,649.75
  4. Step 4: Simplify right side
    3,720.94x = 31,919,675.06
  5. Step 5: Solve for x
    x = 31,919,675.06/3,720.94
  6. Step 6: Final answer
    x = 8,578.40

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.