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Finding the Fourth Proportional to 43,993.87, 65,997.79 and 15,911.05

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Solution

The fourth proportional to 43,993.87, 65,997.79 and 15,911.05 is: 23,869.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,993.87 : 65,997.79 = 15,911.05 : x
  2. Step 2: Convert to fraction form
    43,993.87/65,997.79 = 15,911.05/x
  3. Step 3: Cross multiply
    43,993.87x = 65,997.79 × 15,911.05
  4. Step 4: Simplify right side
    43,993.87x = 1,050,094,136.58
  5. Step 5: Solve for x
    x = 1,050,094,136.58/43,993.87
  6. Step 6: Final answer
    x = 23,869.10

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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.