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Finding the Fourth Proportional to 8,651.16, 11,947.37 and 7,453.71

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Solution

The fourth proportional to 8,651.16, 11,947.37 and 7,453.71 is: 10,293.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,651.16 : 11,947.37 = 7,453.71 : x
  2. Step 2: Convert to fraction form
    8,651.16/11,947.37 = 7,453.71/x
  3. Step 3: Cross multiply
    8,651.16x = 11,947.37 × 7,453.71
  4. Step 4: Simplify right side
    8,651.16x = 89,052,193.97
  5. Step 5: Solve for x
    x = 89,052,193.97/8,651.16
  6. Step 6: Final answer
    x = 10,293.67

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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.