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Finding the Fourth Proportional to 7,969.84, 11,954.30 and 3,039.98

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Solution

The fourth proportional to 7,969.84, 11,954.30 and 3,039.98 is: 4,559.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,969.84 : 11,954.30 = 3,039.98 : x
  2. Step 2: Convert to fraction form
    7,969.84/11,954.30 = 3,039.98/x
  3. Step 3: Cross multiply
    7,969.84x = 11,954.30 × 3,039.98
  4. Step 4: Simplify right side
    7,969.84x = 36,340,757.94
  5. Step 5: Solve for x
    x = 36,340,757.94/7,969.84
  6. Step 6: Final answer
    x = 4,559.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.