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Finding the Third Proportional to 4,680 and 6,392

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Solution

The third proportional to 4,680 and 6,392 is: 8,730.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,680 : 6,392 = 6,392 : x
  2. Step 2: Convert to fraction form
    4,680/6,392 = 6,392/x
  3. Step 3: Cross multiply
    4,680x = 6,392 × 6,392
  4. Step 4: Simplify right side
    4,680x = 40,857,664
  5. Step 5: Solve for x
    x = 40,857,664/4,680
  6. Step 6: Final answer
    x = 8,730.27

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.