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Finding the Fourth Proportional to 3,363.94, 5,042.95 and 1,310.50

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Solution

The fourth proportional to 3,363.94, 5,042.95 and 1,310.50 is: 1,964.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,363.94 : 5,042.95 = 1,310.50 : x
  2. Step 2: Convert to fraction form
    3,363.94/5,042.95 = 1,310.50/x
  3. Step 3: Cross multiply
    3,363.94x = 5,042.95 × 1,310.50
  4. Step 4: Simplify right side
    3,363.94x = 6,608,785.98
  5. Step 5: Solve for x
    x = 6,608,785.98/3,363.94
  6. Step 6: Final answer
    x = 1,964.60

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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.