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Finding the Fourth Proportional to 4,843.78, 6,684.24 and 2,719.54

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Solution

The fourth proportional to 4,843.78, 6,684.24 and 2,719.54 is: 3,752.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,843.78 : 6,684.24 = 2,719.54 : x
  2. Step 2: Convert to fraction form
    4,843.78/6,684.24 = 2,719.54/x
  3. Step 3: Cross multiply
    4,843.78x = 6,684.24 × 2,719.54
  4. Step 4: Simplify right side
    4,843.78x = 18,178,058.05
  5. Step 5: Solve for x
    x = 18,178,058.05/4,843.78
  6. Step 6: Final answer
    x = 3,752.87

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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.