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Finding the Fourth Proportional to 19,647.87, 29,471.81 and 6,496.71

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Solution

The fourth proportional to 19,647.87, 29,471.81 and 6,496.71 is: 9,745.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,647.87 : 29,471.81 = 6,496.71 : x
  2. Step 2: Convert to fraction form
    19,647.87/29,471.81 = 6,496.71/x
  3. Step 3: Cross multiply
    19,647.87x = 29,471.81 × 6,496.71
  4. Step 4: Simplify right side
    19,647.87x = 191,469,770.26
  5. Step 5: Solve for x
    x = 191,469,770.26/19,647.87
  6. Step 6: Final answer
    x = 9,745.07

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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.