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Finding the Fourth Proportional to 5,659.16, 8,489.61 and 2,150.64

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Solution

The fourth proportional to 5,659.16, 8,489.61 and 2,150.64 is: 3,226.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,659.16 : 8,489.61 = 2,150.64 : x
  2. Step 2: Convert to fraction form
    5,659.16/8,489.61 = 2,150.64/x
  3. Step 3: Cross multiply
    5,659.16x = 8,489.61 × 2,150.64
  4. Step 4: Simplify right side
    5,659.16x = 18,258,094.85
  5. Step 5: Solve for x
    x = 18,258,094.85/5,659.16
  6. Step 6: Final answer
    x = 3,226.29

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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.