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Finding the Fourth Proportional to 57,730.92, 79,664.46 and 33,520.82

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Solution

The fourth proportional to 57,730.92, 79,664.46 and 33,520.82 is: 46,256.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,730.92 : 79,664.46 = 33,520.82 : x
  2. Step 2: Convert to fraction form
    57,730.92/79,664.46 = 33,520.82/x
  3. Step 3: Cross multiply
    57,730.92x = 79,664.46 × 33,520.82
  4. Step 4: Simplify right side
    57,730.92x = 2,670,418,024.06
  5. Step 5: Solve for x
    x = 2,670,418,024.06/57,730.92
  6. Step 6: Final answer
    x = 46,256.29

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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.