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Finding the Third Proportional to 2,816.33 and 4,890.85

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Solution

The third proportional to 2,816.33 and 4,890.85 is: 8,493.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.33 : 4,890.85 = 4,890.85 : x
  2. Step 2: Convert to fraction form
    2,816.33/4,890.85 = 4,890.85/x
  3. Step 3: Cross multiply
    2,816.33x = 4,890.85 × 4,890.85
  4. Step 4: Simplify right side
    2,816.33x = 23,920,409.90
  5. Step 5: Solve for x
    x = 23,920,409.90/2,816.33
  6. Step 6: Final answer
    x = 8,493.46

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Why These Related Problems?

These problems maintain the same ratio (1.74) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.