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Finding the Fourth Proportional to 5,867.80, 8,759.74 and 5,662.68

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Solution

The fourth proportional to 5,867.80, 8,759.74 and 5,662.68 is: 8,453.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,867.80 : 8,759.74 = 5,662.68 : x
  2. Step 2: Convert to fraction form
    5,867.80/8,759.74 = 5,662.68/x
  3. Step 3: Cross multiply
    5,867.80x = 8,759.74 × 5,662.68
  4. Step 4: Simplify right side
    5,867.80x = 49,603,604.50
  5. Step 5: Solve for x
    x = 49,603,604.50/5,867.80
  6. Step 6: Final answer
    x = 8,453.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.