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Finding the Fourth Proportional to 8,184.50, 12,276.75 and 2,028.50

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Solution

The fourth proportional to 8,184.50, 12,276.75 and 2,028.50 is: 3,042.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,184.50 : 12,276.75 = 2,028.50 : x
  2. Step 2: Convert to fraction form
    8,184.50/12,276.75 = 2,028.50/x
  3. Step 3: Cross multiply
    8,184.50x = 12,276.75 × 2,028.50
  4. Step 4: Simplify right side
    8,184.50x = 24,903,387.38
  5. Step 5: Solve for x
    x = 24,903,387.38/8,184.50
  6. Step 6: Final answer
    x = 3,042.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.