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Finding the Fourth Proportional to 2,674.92, 4,012.28 and 943.50

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Solution

The fourth proportional to 2,674.92, 4,012.28 and 943.50 is: 1,415.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,674.92 : 4,012.28 = 943.50 : x
  2. Step 2: Convert to fraction form
    2,674.92/4,012.28 = 943.50/x
  3. Step 3: Cross multiply
    2,674.92x = 4,012.28 × 943.50
  4. Step 4: Simplify right side
    2,674.92x = 3,785,586.18
  5. Step 5: Solve for x
    x = 3,785,586.18/2,674.92
  6. Step 6: Final answer
    x = 1,415.21

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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.