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Finding the Fourth Proportional to 5,921.56, 8,164.08 and 4,855.42

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Solution

The fourth proportional to 5,921.56, 8,164.08 and 4,855.42 is: 6,694.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,921.56 : 8,164.08 = 4,855.42 : x
  2. Step 2: Convert to fraction form
    5,921.56/8,164.08 = 4,855.42/x
  3. Step 3: Cross multiply
    5,921.56x = 8,164.08 × 4,855.42
  4. Step 4: Simplify right side
    5,921.56x = 39,640,037.31
  5. Step 5: Solve for x
    x = 39,640,037.31/5,921.56
  6. Step 6: Final answer
    x = 6,694.19

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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.