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Finding the Fourth Proportional to 7,958.94, 11,879.99 and 7,372.50

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Solution

The fourth proportional to 7,958.94, 11,879.99 and 7,372.50 is: 11,004.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,958.94 : 11,879.99 = 7,372.50 : x
  2. Step 2: Convert to fraction form
    7,958.94/11,879.99 = 7,372.50/x
  3. Step 3: Cross multiply
    7,958.94x = 11,879.99 × 7,372.50
  4. Step 4: Simplify right side
    7,958.94x = 87,585,189.41
  5. Step 5: Solve for x
    x = 87,585,189.41/7,958.94
  6. Step 6: Final answer
    x = 11,004.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.