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Finding the Third Proportional to 4,718 and 7,079

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Solution

The third proportional to 4,718 and 7,079 is: 10,621.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,718 : 7,079 = 7,079 : x
  2. Step 2: Convert to fraction form
    4,718/7,079 = 7,079/x
  3. Step 3: Cross multiply
    4,718x = 7,079 × 7,079
  4. Step 4: Simplify right side
    4,718x = 50,112,241
  5. Step 5: Solve for x
    x = 50,112,241/4,718
  6. Step 6: Final answer
    x = 10,621.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.