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Finding the Fourth Proportional to 5,708.56, 8,563.98 and 2,786.92

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Solution

The fourth proportional to 5,708.56, 8,563.98 and 2,786.92 is: 4,180.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,708.56 : 8,563.98 = 2,786.92 : x
  2. Step 2: Convert to fraction form
    5,708.56/8,563.98 = 2,786.92/x
  3. Step 3: Cross multiply
    5,708.56x = 8,563.98 × 2,786.92
  4. Step 4: Simplify right side
    5,708.56x = 23,867,127.14
  5. Step 5: Solve for x
    x = 23,867,127.14/5,708.56
  6. Step 6: Final answer
    x = 4,180.94

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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.