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Finding the Third Proportional to 4,919.06 and 9,120.94

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Solution

The third proportional to 4,919.06 and 9,120.94 is: 16,912.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.06 : 9,120.94 = 9,120.94 : x
  2. Step 2: Convert to fraction form
    4,919.06/9,120.94 = 9,120.94/x
  3. Step 3: Cross multiply
    4,919.06x = 9,120.94 × 9,120.94
  4. Step 4: Simplify right side
    4,919.06x = 83,191,500.88
  5. Step 5: Solve for x
    x = 83,191,500.88/4,919.06
  6. Step 6: Final answer
    x = 16,912.06

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Why These Related Problems?

These problems maintain the same ratio (1.85) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.