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Finding the Fourth Proportional to 5,571.90, 8,352.36 and 3,923.28

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Solution

The fourth proportional to 5,571.90, 8,352.36 and 3,923.28 is: 5,881.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,571.90 : 8,352.36 = 3,923.28 : x
  2. Step 2: Convert to fraction form
    5,571.90/8,352.36 = 3,923.28/x
  3. Step 3: Cross multiply
    5,571.90x = 8,352.36 × 3,923.28
  4. Step 4: Simplify right side
    5,571.90x = 32,768,646.94
  5. Step 5: Solve for x
    x = 32,768,646.94/5,571.90
  6. Step 6: Final answer
    x = 5,881.05

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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.