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Finding the Fourth Proportional to 5,771.75, 8,650.78 and 2,649.12

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Solution

The fourth proportional to 5,771.75, 8,650.78 and 2,649.12 is: 3,970.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,771.75 : 8,650.78 = 2,649.12 : x
  2. Step 2: Convert to fraction form
    5,771.75/8,650.78 = 2,649.12/x
  3. Step 3: Cross multiply
    5,771.75x = 8,650.78 × 2,649.12
  4. Step 4: Simplify right side
    5,771.75x = 22,916,954.31
  5. Step 5: Solve for x
    x = 22,916,954.31/5,771.75
  6. Step 6: Final answer
    x = 3,970.54

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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.