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Finding the Fourth Proportional to 4,004.01, 5,530.05 and 3,949.38

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Solution

The fourth proportional to 4,004.01, 5,530.05 and 3,949.38 is: 5,454.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,004.01 : 5,530.05 = 3,949.38 : x
  2. Step 2: Convert to fraction form
    4,004.01/5,530.05 = 3,949.38/x
  3. Step 3: Cross multiply
    4,004.01x = 5,530.05 × 3,949.38
  4. Step 4: Simplify right side
    4,004.01x = 21,840,268.87
  5. Step 5: Solve for x
    x = 21,840,268.87/4,004.01
  6. Step 6: Final answer
    x = 5,454.60

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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.