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Finding the Fourth Proportional to 7,813.26, 10,771.08 and 5,571.26

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Solution

The fourth proportional to 7,813.26, 10,771.08 and 5,571.26 is: 7,680.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,813.26 : 10,771.08 = 5,571.26 : x
  2. Step 2: Convert to fraction form
    7,813.26/10,771.08 = 5,571.26/x
  3. Step 3: Cross multiply
    7,813.26x = 10,771.08 × 5,571.26
  4. Step 4: Simplify right side
    7,813.26x = 60,008,433.31
  5. Step 5: Solve for x
    x = 60,008,433.31/7,813.26
  6. Step 6: Final answer
    x = 7,680.33

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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.