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Finding the Fourth Proportional to 6,474.30, 8,934.21 and 3,955.92

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Solution

The fourth proportional to 6,474.30, 8,934.21 and 3,955.92 is: 5,458.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,474.30 : 8,934.21 = 3,955.92 : x
  2. Step 2: Convert to fraction form
    6,474.30/8,934.21 = 3,955.92/x
  3. Step 3: Cross multiply
    6,474.30x = 8,934.21 × 3,955.92
  4. Step 4: Simplify right side
    6,474.30x = 35,343,020.02
  5. Step 5: Solve for x
    x = 35,343,020.02/6,474.30
  6. Step 6: Final answer
    x = 5,458.97

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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.