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Finding the Fourth Proportional to 57,906.56, 79,913.40 and 32,756

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Solution

The fourth proportional to 57,906.56, 79,913.40 and 32,756 is: 45,204.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,906.56 : 79,913.40 = 32,756 : x
  2. Step 2: Convert to fraction form
    57,906.56/79,913.40 = 32,756/x
  3. Step 3: Cross multiply
    57,906.56x = 79,913.40 × 32,756
  4. Step 4: Simplify right side
    57,906.56x = 2,617,643,330.40
  5. Step 5: Solve for x
    x = 2,617,643,330.40/57,906.56
  6. Step 6: Final answer
    x = 45,204.61

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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.