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Finding the Fourth Proportional to 5,475.44, 7,556.11 and 2,991.44

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Solution

The fourth proportional to 5,475.44, 7,556.11 and 2,991.44 is: 4,128.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,475.44 : 7,556.11 = 2,991.44 : x
  2. Step 2: Convert to fraction form
    5,475.44/7,556.11 = 2,991.44/x
  3. Step 3: Cross multiply
    5,475.44x = 7,556.11 × 2,991.44
  4. Step 4: Simplify right side
    5,475.44x = 22,603,649.70
  5. Step 5: Solve for x
    x = 22,603,649.70/5,475.44
  6. Step 6: Final answer
    x = 4,128.19

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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.