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Finding the Third Proportional to 3,619.69 and 4,887.84

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Solution

The third proportional to 3,619.69 and 4,887.84 is: 6,600.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.69 : 4,887.84 = 4,887.84 : x
  2. Step 2: Convert to fraction form
    3,619.69/4,887.84 = 4,887.84/x
  3. Step 3: Cross multiply
    3,619.69x = 4,887.84 × 4,887.84
  4. Step 4: Simplify right side
    3,619.69x = 23,891,016.52
  5. Step 5: Solve for x
    x = 23,891,016.52/3,619.69
  6. Step 6: Final answer
    x = 6,600.30

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.