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Finding the Fourth Proportional to 49,588.88, 74,383.31 and 12,652.88

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Solution

The fourth proportional to 49,588.88, 74,383.31 and 12,652.88 is: 18,979.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,588.88 : 74,383.31 = 12,652.88 : x
  2. Step 2: Convert to fraction form
    49,588.88/74,383.31 = 12,652.88/x
  3. Step 3: Cross multiply
    49,588.88x = 74,383.31 × 12,652.88
  4. Step 4: Simplify right side
    49,588.88x = 941,162,755.15
  5. Step 5: Solve for x
    x = 941,162,755.15/49,588.88
  6. Step 6: Final answer
    x = 18,979.31

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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.