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Finding the Fourth Proportional to 5,471.21, 8,208.11 and 1,773.44

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Solution

The fourth proportional to 5,471.21, 8,208.11 and 1,773.44 is: 2,660.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,471.21 : 8,208.11 = 1,773.44 : x
  2. Step 2: Convert to fraction form
    5,471.21/8,208.11 = 1,773.44/x
  3. Step 3: Cross multiply
    5,471.21x = 8,208.11 × 1,773.44
  4. Step 4: Simplify right side
    5,471.21x = 14,556,574.80
  5. Step 5: Solve for x
    x = 14,556,574.80/5,471.21
  6. Step 6: Final answer
    x = 2,660.58

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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.