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Finding the Fourth Proportional to 3,432.21, 4,736.44 and 1,860.31

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Solution

The fourth proportional to 3,432.21, 4,736.44 and 1,860.31 is: 2,567.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,432.21 : 4,736.44 = 1,860.31 : x
  2. Step 2: Convert to fraction form
    3,432.21/4,736.44 = 1,860.31/x
  3. Step 3: Cross multiply
    3,432.21x = 4,736.44 × 1,860.31
  4. Step 4: Simplify right side
    3,432.21x = 8,811,230.20
  5. Step 5: Solve for x
    x = 8,811,230.20/3,432.21
  6. Step 6: Final answer
    x = 2,567.22

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.