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Finding the Fourth Proportional to 57,715.84, 79,621.84 and 33,832.43

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Solution

The fourth proportional to 57,715.84, 79,621.84 and 33,832.43 is: 46,673.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,715.84 : 79,621.84 = 33,832.43 : x
  2. Step 2: Convert to fraction form
    57,715.84/79,621.84 = 33,832.43/x
  3. Step 3: Cross multiply
    57,715.84x = 79,621.84 × 33,832.43
  4. Step 4: Simplify right side
    57,715.84x = 2,693,800,528.60
  5. Step 5: Solve for x
    x = 2,693,800,528.60/57,715.84
  6. Step 6: Final answer
    x = 46,673.50

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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.