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Finding the Third Proportional to 3,214.69 and 4,974.75

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Solution

The third proportional to 3,214.69 and 4,974.75 is: 7,698.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,214.69 : 4,974.75 = 4,974.75 : x
  2. Step 2: Convert to fraction form
    3,214.69/4,974.75 = 4,974.75/x
  3. Step 3: Cross multiply
    3,214.69x = 4,974.75 × 4,974.75
  4. Step 4: Simplify right side
    3,214.69x = 24,748,137.56
  5. Step 5: Solve for x
    x = 24,748,137.56/3,214.69
  6. Step 6: Final answer
    x = 7,698.46

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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.