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Finding the Fourth Proportional to 50,751.92, 76,055.07 and 28,518.55

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Solution

The fourth proportional to 50,751.92, 76,055.07 and 28,518.55 is: 42,736.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,751.92 : 76,055.07 = 28,518.55 : x
  2. Step 2: Convert to fraction form
    50,751.92/76,055.07 = 28,518.55/x
  3. Step 3: Cross multiply
    50,751.92x = 76,055.07 × 28,518.55
  4. Step 4: Simplify right side
    50,751.92x = 2,168,980,072.94
  5. Step 5: Solve for x
    x = 2,168,980,072.94/50,751.92
  6. Step 6: Final answer
    x = 42,736.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.