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Finding the Fourth Proportional to 8,540.40, 11,783.96 and 5,184.98

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Solution

The fourth proportional to 8,540.40, 11,783.96 and 5,184.98 is: 7,154.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,540.40 : 11,783.96 = 5,184.98 : x
  2. Step 2: Convert to fraction form
    8,540.40/11,783.96 = 5,184.98/x
  3. Step 3: Cross multiply
    8,540.40x = 11,783.96 × 5,184.98
  4. Step 4: Simplify right side
    8,540.40x = 61,099,596.92
  5. Step 5: Solve for x
    x = 61,099,596.92/8,540.40
  6. Step 6: Final answer
    x = 7,154.18

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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.