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Finding the Third Proportional to 3,228.75 and 4,998.38

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Solution

The third proportional to 3,228.75 and 4,998.38 is: 7,737.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,228.75 : 4,998.38 = 4,998.38 : x
  2. Step 2: Convert to fraction form
    3,228.75/4,998.38 = 4,998.38/x
  3. Step 3: Cross multiply
    3,228.75x = 4,998.38 × 4,998.38
  4. Step 4: Simplify right side
    3,228.75x = 24,983,752.64
  5. Step 5: Solve for x
    x = 24,983,752.64/3,228.75
  6. Step 6: Final answer
    x = 7,737.90

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.