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Finding the Fourth Proportional to 8,119.99, 12,180.76 and 2,276.58

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Solution

The fourth proportional to 8,119.99, 12,180.76 and 2,276.58 is: 3,415.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,119.99 : 12,180.76 = 2,276.58 : x
  2. Step 2: Convert to fraction form
    8,119.99/12,180.76 = 2,276.58/x
  3. Step 3: Cross multiply
    8,119.99x = 12,180.76 × 2,276.58
  4. Step 4: Simplify right side
    8,119.99x = 27,730,499.36
  5. Step 5: Solve for x
    x = 27,730,499.36/8,119.99
  6. Step 6: Final answer
    x = 3,415.09

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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.