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Finding the Fourth Proportional to 5,771.90, 8,659.78 and 2,440.94

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Solution

The fourth proportional to 5,771.90, 8,659.78 and 2,440.94 is: 3,662.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,771.90 : 8,659.78 = 2,440.94 : x
  2. Step 2: Convert to fraction form
    5,771.90/8,659.78 = 2,440.94/x
  3. Step 3: Cross multiply
    5,771.90x = 8,659.78 × 2,440.94
  4. Step 4: Simplify right side
    5,771.90x = 21,137,987.85
  5. Step 5: Solve for x
    x = 21,137,987.85/5,771.90
  6. Step 6: Final answer
    x = 3,662.23

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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.