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Finding the Fourth Proportional to 6,609.78, 9,917.37 and 5,576.22

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Solution

The fourth proportional to 6,609.78, 9,917.37 and 5,576.22 is: 8,366.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,609.78 : 9,917.37 = 5,576.22 : x
  2. Step 2: Convert to fraction form
    6,609.78/9,917.37 = 5,576.22/x
  3. Step 3: Cross multiply
    6,609.78x = 9,917.37 × 5,576.22
  4. Step 4: Simplify right side
    6,609.78x = 55,301,436.94
  5. Step 5: Solve for x
    x = 55,301,436.94/6,609.78
  6. Step 6: Final answer
    x = 8,366.61

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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.