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Finding the Fourth Proportional to 43,843.99, 65,775.74 and 20,457.67

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Solution

The fourth proportional to 43,843.99, 65,775.74 and 20,457.67 is: 30,691.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,843.99 : 65,775.74 = 20,457.67 : x
  2. Step 2: Convert to fraction form
    43,843.99/65,775.74 = 20,457.67/x
  3. Step 3: Cross multiply
    43,843.99x = 65,775.74 × 20,457.67
  4. Step 4: Simplify right side
    43,843.99x = 1,345,618,382.93
  5. Step 5: Solve for x
    x = 1,345,618,382.93/43,843.99
  6. Step 6: Final answer
    x = 30,691.06

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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.