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Finding the Fourth Proportional to 4,951.94, 6,834.69 and 2,855.78

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Solution

The fourth proportional to 4,951.94, 6,834.69 and 2,855.78 is: 3,941.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,951.94 : 6,834.69 = 2,855.78 : x
  2. Step 2: Convert to fraction form
    4,951.94/6,834.69 = 2,855.78/x
  3. Step 3: Cross multiply
    4,951.94x = 6,834.69 × 2,855.78
  4. Step 4: Simplify right side
    4,951.94x = 19,518,371.01
  5. Step 5: Solve for x
    x = 19,518,371.01/4,951.94
  6. Step 6: Final answer
    x = 3,941.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.