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Finding the Fourth Proportional to 5,450.85, 7,520.22 and 4,037.49

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Solution

The fourth proportional to 5,450.85, 7,520.22 and 4,037.49 is: 5,570.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,450.85 : 7,520.22 = 4,037.49 : x
  2. Step 2: Convert to fraction form
    5,450.85/7,520.22 = 4,037.49/x
  3. Step 3: Cross multiply
    5,450.85x = 7,520.22 × 4,037.49
  4. Step 4: Simplify right side
    5,450.85x = 30,362,813.05
  5. Step 5: Solve for x
    x = 30,362,813.05/5,450.85
  6. Step 6: Final answer
    x = 5,570.29

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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.