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Finding the Fourth Proportional to 7,379.99, 11,022.96 and 6,676.12

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Solution

The fourth proportional to 7,379.99, 11,022.96 and 6,676.12 is: 9,971.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,379.99 : 11,022.96 = 6,676.12 : x
  2. Step 2: Convert to fraction form
    7,379.99/11,022.96 = 6,676.12/x
  3. Step 3: Cross multiply
    7,379.99x = 11,022.96 × 6,676.12
  4. Step 4: Simplify right side
    7,379.99x = 73,590,571.79
  5. Step 5: Solve for x
    x = 73,590,571.79/7,379.99
  6. Step 6: Final answer
    x = 9,971.63

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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.