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Finding the Fourth Proportional to 38,482.56, 52,939.44 and 31,393.44

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Solution

The fourth proportional to 38,482.56, 52,939.44 and 31,393.44 is: 43,187.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,482.56 : 52,939.44 = 31,393.44 : x
  2. Step 2: Convert to fraction form
    38,482.56/52,939.44 = 31,393.44/x
  3. Step 3: Cross multiply
    38,482.56x = 52,939.44 × 31,393.44
  4. Step 4: Simplify right side
    38,482.56x = 1,661,951,133.27
  5. Step 5: Solve for x
    x = 1,661,951,133.27/38,482.56
  6. Step 6: Final answer
    x = 43,187.13

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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.