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Finding the Third Proportional to 3,219.75 and 4,698

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Solution

The third proportional to 3,219.75 and 4,698 is: 6,854.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.75 : 4,698 = 4,698 : x
  2. Step 2: Convert to fraction form
    3,219.75/4,698 = 4,698/x
  3. Step 3: Cross multiply
    3,219.75x = 4,698 × 4,698
  4. Step 4: Simplify right side
    3,219.75x = 22,071,204
  5. Step 5: Solve for x
    x = 22,071,204/3,219.75
  6. Step 6: Final answer
    x = 6,854.94

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.