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Finding the Fourth Proportional to 4,640.15, 6,952.12 and 3,865.13

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Solution

The fourth proportional to 4,640.15, 6,952.12 and 3,865.13 is: 5,790.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,640.15 : 6,952.12 = 3,865.13 : x
  2. Step 2: Convert to fraction form
    4,640.15/6,952.12 = 3,865.13/x
  3. Step 3: Cross multiply
    4,640.15x = 6,952.12 × 3,865.13
  4. Step 4: Simplify right side
    4,640.15x = 26,870,847.58
  5. Step 5: Solve for x
    x = 26,870,847.58/4,640.15
  6. Step 6: Final answer
    x = 5,790.94

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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.