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Finding the Fourth Proportional to 6,471.44, 8,908.55 and 4,789.68

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Solution

The fourth proportional to 6,471.44, 8,908.55 and 4,789.68 is: 6,593.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,471.44 : 8,908.55 = 4,789.68 : x
  2. Step 2: Convert to fraction form
    6,471.44/8,908.55 = 4,789.68/x
  3. Step 3: Cross multiply
    6,471.44x = 8,908.55 × 4,789.68
  4. Step 4: Simplify right side
    6,471.44x = 42,669,035.27
  5. Step 5: Solve for x
    x = 42,669,035.27/6,471.44
  6. Step 6: Final answer
    x = 6,593.44

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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.