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Finding the Fourth Proportional to 47,072.54, 64,936.08 and 30,058.90

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Solution

The fourth proportional to 47,072.54, 64,936.08 and 30,058.90 is: 41,465.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,072.54 : 64,936.08 = 30,058.90 : x
  2. Step 2: Convert to fraction form
    47,072.54/64,936.08 = 30,058.90/x
  3. Step 3: Cross multiply
    47,072.54x = 64,936.08 × 30,058.90
  4. Step 4: Simplify right side
    47,072.54x = 1,951,907,135.11
  5. Step 5: Solve for x
    x = 1,951,907,135.11/47,072.54
  6. Step 6: Final answer
    x = 41,465.94

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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.