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Finding the Third Proportional to 4,121.75 and 8,733.88

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Solution

The third proportional to 4,121.75 and 8,733.88 is: 18,506.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.75 : 8,733.88 = 8,733.88 : x
  2. Step 2: Convert to fraction form
    4,121.75/8,733.88 = 8,733.88/x
  3. Step 3: Cross multiply
    4,121.75x = 8,733.88 × 8,733.88
  4. Step 4: Simplify right side
    4,121.75x = 76,280,572.52
  5. Step 5: Solve for x
    x = 76,280,572.52/4,121.75
  6. Step 6: Final answer
    x = 18,506.84

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.