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Finding the Fourth Proportional to 3,974.52, 5,477.79 and 3,516.26

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Solution

The fourth proportional to 3,974.52, 5,477.79 and 3,516.26 is: 4,846.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,974.52 : 5,477.79 = 3,516.26 : x
  2. Step 2: Convert to fraction form
    3,974.52/5,477.79 = 3,516.26/x
  3. Step 3: Cross multiply
    3,974.52x = 5,477.79 × 3,516.26
  4. Step 4: Simplify right side
    3,974.52x = 19,261,306.48
  5. Step 5: Solve for x
    x = 19,261,306.48/3,974.52
  6. Step 6: Final answer
    x = 4,846.20

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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.