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Finding the Fourth Proportional to 4,963.78, 6,849.90 and 2,725.65

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Solution

The fourth proportional to 4,963.78, 6,849.90 and 2,725.65 is: 3,761.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,963.78 : 6,849.90 = 2,725.65 : x
  2. Step 2: Convert to fraction form
    4,963.78/6,849.90 = 2,725.65/x
  3. Step 3: Cross multiply
    4,963.78x = 6,849.90 × 2,725.65
  4. Step 4: Simplify right side
    4,963.78x = 18,670,429.94
  5. Step 5: Solve for x
    x = 18,670,429.94/4,963.78
  6. Step 6: Final answer
    x = 3,761.33

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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.