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Finding the Fourth Proportional to 57,840.21, 79,811.02 and 32,343.44

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Solution

The fourth proportional to 57,840.21, 79,811.02 and 32,343.44 is: 44,629.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,840.21 : 79,811.02 = 32,343.44 : x
  2. Step 2: Convert to fraction form
    57,840.21/79,811.02 = 32,343.44/x
  3. Step 3: Cross multiply
    57,840.21x = 79,811.02 × 32,343.44
  4. Step 4: Simplify right side
    57,840.21x = 2,581,362,578.08
  5. Step 5: Solve for x
    x = 2,581,362,578.08/57,840.21
  6. Step 6: Final answer
    x = 44,629.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.