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Finding the Third Proportional to 4,415.75 and 6,189.13

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Solution

The third proportional to 4,415.75 and 6,189.13 is: 8,674.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,415.75 : 6,189.13 = 6,189.13 : x
  2. Step 2: Convert to fraction form
    4,415.75/6,189.13 = 6,189.13/x
  3. Step 3: Cross multiply
    4,415.75x = 6,189.13 × 6,189.13
  4. Step 4: Simplify right side
    4,415.75x = 38,305,268.27
  5. Step 5: Solve for x
    x = 38,305,268.27/4,415.75
  6. Step 6: Final answer
    x = 8,674.69

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.