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Finding the Fourth Proportional to 5,359.64, 7,393.84 and 3,471.86

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Solution

The fourth proportional to 5,359.64, 7,393.84 and 3,471.86 is: 4,789.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,359.64 : 7,393.84 = 3,471.86 : x
  2. Step 2: Convert to fraction form
    5,359.64/7,393.84 = 3,471.86/x
  3. Step 3: Cross multiply
    5,359.64x = 7,393.84 × 3,471.86
  4. Step 4: Simplify right side
    5,359.64x = 25,670,340.37
  5. Step 5: Solve for x
    x = 25,670,340.37/5,359.64
  6. Step 6: Final answer
    x = 4,789.56

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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.