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Finding the Fourth Proportional to 6,369.75, 8,790.26 and 3,576.15

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Solution

The fourth proportional to 6,369.75, 8,790.26 and 3,576.15 is: 4,935.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,369.75 : 8,790.26 = 3,576.15 : x
  2. Step 2: Convert to fraction form
    6,369.75/8,790.26 = 3,576.15/x
  3. Step 3: Cross multiply
    6,369.75x = 8,790.26 × 3,576.15
  4. Step 4: Simplify right side
    6,369.75x = 31,435,270.42
  5. Step 5: Solve for x
    x = 31,435,270.42/6,369.75
  6. Step 6: Final answer
    x = 4,935.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.