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Finding the Third Proportional to 4,318 and 6,112

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Solution

The third proportional to 4,318 and 6,112 is: 8,651.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,318 : 6,112 = 6,112 : x
  2. Step 2: Convert to fraction form
    4,318/6,112 = 6,112/x
  3. Step 3: Cross multiply
    4,318x = 6,112 × 6,112
  4. Step 4: Simplify right side
    4,318x = 37,356,544
  5. Step 5: Solve for x
    x = 37,356,544/4,318
  6. Step 6: Final answer
    x = 8,651.35

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.