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Finding the Fourth Proportional to 3,439.98, 5,160.15 and 1,492.32

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Solution

The fourth proportional to 3,439.98, 5,160.15 and 1,492.32 is: 2,238.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.98 : 5,160.15 = 1,492.32 : x
  2. Step 2: Convert to fraction form
    3,439.98/5,160.15 = 1,492.32/x
  3. Step 3: Cross multiply
    3,439.98x = 5,160.15 × 1,492.32
  4. Step 4: Simplify right side
    3,439.98x = 7,700,595.05
  5. Step 5: Solve for x
    x = 7,700,595.05/3,439.98
  6. Step 6: Final answer
    x = 2,238.56

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.