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Finding the Fourth Proportional to 6,933.72, 9,568.80 and 3,790.20

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Solution

The fourth proportional to 6,933.72, 9,568.80 and 3,790.20 is: 5,230.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,933.72 : 9,568.80 = 3,790.20 : x
  2. Step 2: Convert to fraction form
    6,933.72/9,568.80 = 3,790.20/x
  3. Step 3: Cross multiply
    6,933.72x = 9,568.80 × 3,790.20
  4. Step 4: Simplify right side
    6,933.72x = 36,267,665.76
  5. Step 5: Solve for x
    x = 36,267,665.76/6,933.72
  6. Step 6: Final answer
    x = 5,230.62

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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.