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Finding the Fourth Proportional to 9,318.33, 13,958.87 and 5,618.52

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Solution

The fourth proportional to 9,318.33, 13,958.87 and 5,618.52 is: 8,416.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,318.33 : 13,958.87 = 5,618.52 : x
  2. Step 2: Convert to fraction form
    9,318.33/13,958.87 = 5,618.52/x
  3. Step 3: Cross multiply
    9,318.33x = 13,958.87 × 5,618.52
  4. Step 4: Simplify right side
    9,318.33x = 78,428,162.18
  5. Step 5: Solve for x
    x = 78,428,162.18/9,318.33
  6. Step 6: Final answer
    x = 8,416.55

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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.