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Finding the Fourth Proportional to 5,660.64, 8,494.56 and 2,197.92

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Solution

The fourth proportional to 5,660.64, 8,494.56 and 2,197.92 is: 3,298.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,660.64 : 8,494.56 = 2,197.92 : x
  2. Step 2: Convert to fraction form
    5,660.64/8,494.56 = 2,197.92/x
  3. Step 3: Cross multiply
    5,660.64x = 8,494.56 × 2,197.92
  4. Step 4: Simplify right side
    5,660.64x = 18,670,363.32
  5. Step 5: Solve for x
    x = 18,670,363.32/5,660.64
  6. Step 6: Final answer
    x = 3,298.28

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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.