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Finding the Fourth Proportional to 5,857.85, 8,786.78 and 2,394.29

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Solution

The fourth proportional to 5,857.85, 8,786.78 and 2,394.29 is: 3,591.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,857.85 : 8,786.78 = 2,394.29 : x
  2. Step 2: Convert to fraction form
    5,857.85/8,786.78 = 2,394.29/x
  3. Step 3: Cross multiply
    5,857.85x = 8,786.78 × 2,394.29
  4. Step 4: Simplify right side
    5,857.85x = 21,038,087.51
  5. Step 5: Solve for x
    x = 21,038,087.51/5,857.85
  6. Step 6: Final answer
    x = 3,591.44

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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.