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Finding the Fourth Proportional to 9,316.96, 12,856.26 and 5,540.20

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Solution

The fourth proportional to 9,316.96, 12,856.26 and 5,540.20 is: 7,644.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,316.96 : 12,856.26 = 5,540.20 : x
  2. Step 2: Convert to fraction form
    9,316.96/12,856.26 = 5,540.20/x
  3. Step 3: Cross multiply
    9,316.96x = 12,856.26 × 5,540.20
  4. Step 4: Simplify right side
    9,316.96x = 71,226,251.65
  5. Step 5: Solve for x
    x = 71,226,251.65/9,316.96
  6. Step 6: Final answer
    x = 7,644.80

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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.