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Finding the Fourth Proportional to 8,984.57, 12,393.83 and 5,626.67

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Solution

The fourth proportional to 8,984.57, 12,393.83 and 5,626.67 is: 7,761.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,984.57 : 12,393.83 = 5,626.67 : x
  2. Step 2: Convert to fraction form
    8,984.57/12,393.83 = 5,626.67/x
  3. Step 3: Cross multiply
    8,984.57x = 12,393.83 × 5,626.67
  4. Step 4: Simplify right side
    8,984.57x = 69,735,943.54
  5. Step 5: Solve for x
    x = 69,735,943.54/8,984.57
  6. Step 6: Final answer
    x = 7,761.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.