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Finding the Fourth Proportional to 5,736.88, 7,919.32 and 3,499.56

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Solution

The fourth proportional to 5,736.88, 7,919.32 and 3,499.56 is: 4,830.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,736.88 : 7,919.32 = 3,499.56 : x
  2. Step 2: Convert to fraction form
    5,736.88/7,919.32 = 3,499.56/x
  3. Step 3: Cross multiply
    5,736.88x = 7,919.32 × 3,499.56
  4. Step 4: Simplify right side
    5,736.88x = 27,714,135.50
  5. Step 5: Solve for x
    x = 27,714,135.50/5,736.88
  6. Step 6: Final answer
    x = 4,830.87

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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.