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Finding the Fourth Proportional to 5,453.42, 7,524.81 and 3,214.99

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Solution

The fourth proportional to 5,453.42, 7,524.81 and 3,214.99 is: 4,436.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,453.42 : 7,524.81 = 3,214.99 : x
  2. Step 2: Convert to fraction form
    5,453.42/7,524.81 = 3,214.99/x
  3. Step 3: Cross multiply
    5,453.42x = 7,524.81 × 3,214.99
  4. Step 4: Simplify right side
    5,453.42x = 24,192,188.90
  5. Step 5: Solve for x
    x = 24,192,188.90/5,453.42
  6. Step 6: Final answer
    x = 4,436.15

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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.