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Finding the Fourth Proportional to 39,992.94, 59,940.81 and 30,100.41

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Solution

The fourth proportional to 39,992.94, 59,940.81 and 30,100.41 is: 45,114.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,992.94 : 59,940.81 = 30,100.41 : x
  2. Step 2: Convert to fraction form
    39,992.94/59,940.81 = 30,100.41/x
  3. Step 3: Cross multiply
    39,992.94x = 59,940.81 × 30,100.41
  4. Step 4: Simplify right side
    39,992.94x = 1,804,242,956.73
  5. Step 5: Solve for x
    x = 1,804,242,956.73/39,992.94
  6. Step 6: Final answer
    x = 45,114.04

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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.