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Finding the Fourth Proportional to 7,960.64, 11,954.83 and 7,334.78

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Solution

The fourth proportional to 7,960.64, 11,954.83 and 7,334.78 is: 11,014.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,960.64 : 11,954.83 = 7,334.78 : x
  2. Step 2: Convert to fraction form
    7,960.64/11,954.83 = 7,334.78/x
  3. Step 3: Cross multiply
    7,960.64x = 11,954.83 × 7,334.78
  4. Step 4: Simplify right side
    7,960.64x = 87,685,969.88
  5. Step 5: Solve for x
    x = 87,685,969.88/7,960.64
  6. Step 6: Final answer
    x = 11,014.94

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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.