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Finding the Fourth Proportional to 4,723.44, 7,078.15 and 3,158.07

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Solution

The fourth proportional to 4,723.44, 7,078.15 and 3,158.07 is: 4,732.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,723.44 : 7,078.15 = 3,158.07 : x
  2. Step 2: Convert to fraction form
    4,723.44/7,078.15 = 3,158.07/x
  3. Step 3: Cross multiply
    4,723.44x = 7,078.15 × 3,158.07
  4. Step 4: Simplify right side
    4,723.44x = 22,353,293.17
  5. Step 5: Solve for x
    x = 22,353,293.17/4,723.44
  6. Step 6: Final answer
    x = 4,732.42

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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.