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Finding the Third Proportional to 3,969.84 and 5,184.84

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Solution

The third proportional to 3,969.84 and 5,184.84 is: 6,771.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969.84 : 5,184.84 = 5,184.84 : x
  2. Step 2: Convert to fraction form
    3,969.84/5,184.84 = 5,184.84/x
  3. Step 3: Cross multiply
    3,969.84x = 5,184.84 × 5,184.84
  4. Step 4: Simplify right side
    3,969.84x = 26,882,604.71
  5. Step 5: Solve for x
    x = 26,882,604.71/3,969.84
  6. Step 6: Final answer
    x = 6,771.70

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.