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Finding the Fourth Proportional to 5,361.72, 8,041.77 and 2,074.41

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Solution

The fourth proportional to 5,361.72, 8,041.77 and 2,074.41 is: 3,111.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,361.72 : 8,041.77 = 2,074.41 : x
  2. Step 2: Convert to fraction form
    5,361.72/8,041.77 = 2,074.41/x
  3. Step 3: Cross multiply
    5,361.72x = 8,041.77 × 2,074.41
  4. Step 4: Simplify right side
    5,361.72x = 16,681,928.11
  5. Step 5: Solve for x
    x = 16,681,928.11/5,361.72
  6. Step 6: Final answer
    x = 3,111.30

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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.