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Finding the Third Proportional to 3,079 and 4,621

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Solution

The third proportional to 3,079 and 4,621 is: 6,935.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079 : 4,621 = 4,621 : x
  2. Step 2: Convert to fraction form
    3,079/4,621 = 4,621/x
  3. Step 3: Cross multiply
    3,079x = 4,621 × 4,621
  4. Step 4: Simplify right side
    3,079x = 21,353,641
  5. Step 5: Solve for x
    x = 21,353,641/3,079
  6. Step 6: Final answer
    x = 6,935.25

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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.