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Finding the Third Proportional to 4,611.09 and 6,912.84

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Solution

The third proportional to 4,611.09 and 6,912.84 is: 10,363.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,611.09 : 6,912.84 = 6,912.84 : x
  2. Step 2: Convert to fraction form
    4,611.09/6,912.84 = 6,912.84/x
  3. Step 3: Cross multiply
    4,611.09x = 6,912.84 × 6,912.84
  4. Step 4: Simplify right side
    4,611.09x = 47,787,408.71
  5. Step 5: Solve for x
    x = 47,787,408.71/4,611.09
  6. Step 6: Final answer
    x = 10,363.57

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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.