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Finding the Fourth Proportional to 6,790.92, 9,370.64 and 3,806.08

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Solution

The fourth proportional to 6,790.92, 9,370.64 and 3,806.08 is: 5,251.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,790.92 : 9,370.64 = 3,806.08 : x
  2. Step 2: Convert to fraction form
    6,790.92/9,370.64 = 3,806.08/x
  3. Step 3: Cross multiply
    6,790.92x = 9,370.64 × 3,806.08
  4. Step 4: Simplify right side
    6,790.92x = 35,665,405.49
  5. Step 5: Solve for x
    x = 35,665,405.49/6,790.92
  6. Step 6: Final answer
    x = 5,251.93

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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.