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Finding the Third Proportional to 4,212.42 and 4,617.42

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Solution

The third proportional to 4,212.42 and 4,617.42 is: 5,061.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,212.42 : 4,617.42 = 4,617.42 : x
  2. Step 2: Convert to fraction form
    4,212.42/4,617.42 = 4,617.42/x
  3. Step 3: Cross multiply
    4,212.42x = 4,617.42 × 4,617.42
  4. Step 4: Simplify right side
    4,212.42x = 21,320,584.77
  5. Step 5: Solve for x
    x = 21,320,584.77/4,212.42
  6. Step 6: Final answer
    x = 5,061.36

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Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.