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Finding the Fourth Proportional to 5,857.55, 8,786.48 and 1,908.82

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Solution

The fourth proportional to 5,857.55, 8,786.48 and 1,908.82 is: 2,863.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,857.55 : 8,786.48 = 1,908.82 : x
  2. Step 2: Convert to fraction form
    5,857.55/8,786.48 = 1,908.82/x
  3. Step 3: Cross multiply
    5,857.55x = 8,786.48 × 1,908.82
  4. Step 4: Simplify right side
    5,857.55x = 16,771,760.77
  5. Step 5: Solve for x
    x = 16,771,760.77/5,857.55
  6. Step 6: Final answer
    x = 2,863.27

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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.