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Finding the Fourth Proportional to 5,857.70, 8,788.20 and 3,083.72

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Solution

The fourth proportional to 5,857.70, 8,788.20 and 3,083.72 is: 4,626.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,857.70 : 8,788.20 = 3,083.72 : x
  2. Step 2: Convert to fraction form
    5,857.70/8,788.20 = 3,083.72/x
  3. Step 3: Cross multiply
    5,857.70x = 8,788.20 × 3,083.72
  4. Step 4: Simplify right side
    5,857.70x = 27,100,348.10
  5. Step 5: Solve for x
    x = 27,100,348.10/5,857.70
  6. Step 6: Final answer
    x = 4,626.45

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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.