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Finding the Fourth Proportional to 5,719.56, 8,571.60 and 3,636.24

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Solution

The fourth proportional to 5,719.56, 8,571.60 and 3,636.24 is: 5,449.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,719.56 : 8,571.60 = 3,636.24 : x
  2. Step 2: Convert to fraction form
    5,719.56/8,571.60 = 3,636.24/x
  3. Step 3: Cross multiply
    5,719.56x = 8,571.60 × 3,636.24
  4. Step 4: Simplify right side
    5,719.56x = 31,168,394.78
  5. Step 5: Solve for x
    x = 31,168,394.78/5,719.56
  6. Step 6: Final answer
    x = 5,449.44

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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.