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Finding the Fourth Proportional to 43,967.68, 65,844.60 and 20,600.80

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Solution

The fourth proportional to 43,967.68, 65,844.60 and 20,600.80 is: 30,851.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,967.68 : 65,844.60 = 20,600.80 : x
  2. Step 2: Convert to fraction form
    43,967.68/65,844.60 = 20,600.80/x
  3. Step 3: Cross multiply
    43,967.68x = 65,844.60 × 20,600.80
  4. Step 4: Simplify right side
    43,967.68x = 1,356,451,435.68
  5. Step 5: Solve for x
    x = 1,356,451,435.68/43,967.68
  6. Step 6: Final answer
    x = 30,851.10

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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.