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Finding the Fourth Proportional to 5,571.54, 7,687.17 and 4,388.94

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Solution

The fourth proportional to 5,571.54, 7,687.17 and 4,388.94 is: 6,055.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,571.54 : 7,687.17 = 4,388.94 : x
  2. Step 2: Convert to fraction form
    5,571.54/7,687.17 = 4,388.94/x
  3. Step 3: Cross multiply
    5,571.54x = 7,687.17 × 4,388.94
  4. Step 4: Simplify right side
    5,571.54x = 33,738,527.90
  5. Step 5: Solve for x
    x = 33,738,527.90/5,571.54
  6. Step 6: Final answer
    x = 6,055.51

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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.