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Finding the Fourth Proportional to 19,958.65, 29,944.82 and 6,820.25

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Solution

The fourth proportional to 19,958.65, 29,944.82 and 6,820.25 is: 10,232.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,958.65 : 29,944.82 = 6,820.25 : x
  2. Step 2: Convert to fraction form
    19,958.65/29,944.82 = 6,820.25/x
  3. Step 3: Cross multiply
    19,958.65x = 29,944.82 × 6,820.25
  4. Step 4: Simplify right side
    19,958.65x = 204,231,025.93
  5. Step 5: Solve for x
    x = 204,231,025.93/19,958.65
  6. Step 6: Final answer
    x = 10,232.71

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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.