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Finding the Fourth Proportional to 6,127.68, 8,455.68 and 3,474.66

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Solution

The fourth proportional to 6,127.68, 8,455.68 and 3,474.66 is: 4,794.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,127.68 : 8,455.68 = 3,474.66 : x
  2. Step 2: Convert to fraction form
    6,127.68/8,455.68 = 3,474.66/x
  3. Step 3: Cross multiply
    6,127.68x = 8,455.68 × 3,474.66
  4. Step 4: Simplify right side
    6,127.68x = 29,380,613.07
  5. Step 5: Solve for x
    x = 29,380,613.07/6,127.68
  6. Step 6: Final answer
    x = 4,794.74

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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.