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Finding the Fourth Proportional to 57,730.92, 79,639.32 and 35,063.88

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Solution

The fourth proportional to 57,730.92, 79,639.32 and 35,063.88 is: 48,370.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,730.92 : 79,639.32 = 35,063.88 : x
  2. Step 2: Convert to fraction form
    57,730.92/79,639.32 = 35,063.88/x
  3. Step 3: Cross multiply
    57,730.92x = 79,639.32 × 35,063.88
  4. Step 4: Simplify right side
    57,730.92x = 2,792,463,559.76
  5. Step 5: Solve for x
    x = 2,792,463,559.76/57,730.92
  6. Step 6: Final answer
    x = 48,370.33

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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.