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Finding the Third Proportional to 4,215.38 and 6,161.06

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Solution

The third proportional to 4,215.38 and 6,161.06 is: 9,004.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,215.38 : 6,161.06 = 6,161.06 : x
  2. Step 2: Convert to fraction form
    4,215.38/6,161.06 = 6,161.06/x
  3. Step 3: Cross multiply
    4,215.38x = 6,161.06 × 6,161.06
  4. Step 4: Simplify right side
    4,215.38x = 37,958,691.13
  5. Step 5: Solve for x
    x = 37,958,691.13/4,215.38
  6. Step 6: Final answer
    x = 9,004.82

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.