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Finding the Third Proportional to 4,826 and 8,680

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Solution

The third proportional to 4,826 and 8,680 is: 15,611.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,826 : 8,680 = 8,680 : x
  2. Step 2: Convert to fraction form
    4,826/8,680 = 8,680/x
  3. Step 3: Cross multiply
    4,826x = 8,680 × 8,680
  4. Step 4: Simplify right side
    4,826x = 75,342,400
  5. Step 5: Solve for x
    x = 75,342,400/4,826
  6. Step 6: Final answer
    x = 15,611.77

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Why These Related Problems?

These problems maintain the same ratio (1.80) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.