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Finding the Fourth Proportional to 5,591.99, 7,717.04 and 3,074.21

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Solution

The fourth proportional to 5,591.99, 7,717.04 and 3,074.21 is: 4,242.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,591.99 : 7,717.04 = 3,074.21 : x
  2. Step 2: Convert to fraction form
    5,591.99/7,717.04 = 3,074.21/x
  3. Step 3: Cross multiply
    5,591.99x = 7,717.04 × 3,074.21
  4. Step 4: Simplify right side
    5,591.99x = 23,723,786.17
  5. Step 5: Solve for x
    x = 23,723,786.17/5,591.99
  6. Step 6: Final answer
    x = 4,242.46

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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.