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Finding the Fourth Proportional to 2,939.84, 4,411.12 and 1,843.92

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Solution

The fourth proportional to 2,939.84, 4,411.12 and 1,843.92 is: 2,766.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.84 : 4,411.12 = 1,843.92 : x
  2. Step 2: Convert to fraction form
    2,939.84/4,411.12 = 1,843.92/x
  3. Step 3: Cross multiply
    2,939.84x = 4,411.12 × 1,843.92
  4. Step 4: Simplify right side
    2,939.84x = 8,133,752.39
  5. Step 5: Solve for x
    x = 8,133,752.39/2,939.84
  6. Step 6: Final answer
    x = 2,766.73

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1.5x scale

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.