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Finding the Fourth Proportional to 3,866.22, 5,794.08 and 1,781.64

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Solution

The fourth proportional to 3,866.22, 5,794.08 and 1,781.64 is: 2,670.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,866.22 : 5,794.08 = 1,781.64 : x
  2. Step 2: Convert to fraction form
    3,866.22/5,794.08 = 1,781.64/x
  3. Step 3: Cross multiply
    3,866.22x = 5,794.08 × 1,781.64
  4. Step 4: Simplify right side
    3,866.22x = 10,322,935.72
  5. Step 5: Solve for x
    x = 10,322,935.72/3,866.22
  6. Step 6: Final answer
    x = 2,670.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.