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Finding the Fourth Proportional to 8,400.55, 12,601.43 and 3,470.48

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Solution

The fourth proportional to 8,400.55, 12,601.43 and 3,470.48 is: 5,205.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,400.55 : 12,601.43 = 3,470.48 : x
  2. Step 2: Convert to fraction form
    8,400.55/12,601.43 = 3,470.48/x
  3. Step 3: Cross multiply
    8,400.55x = 12,601.43 × 3,470.48
  4. Step 4: Simplify right side
    8,400.55x = 43,732,993.43
  5. Step 5: Solve for x
    x = 43,732,993.43/8,400.55
  6. Step 6: Final answer
    x = 5,205.97

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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.