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Finding the Fourth Proportional to 41,999.42, 62,978.60 and 18,326.97

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Solution

The fourth proportional to 41,999.42, 62,978.60 and 18,326.97 is: 27,481.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,999.42 : 62,978.60 = 18,326.97 : x
  2. Step 2: Convert to fraction form
    41,999.42/62,978.60 = 18,326.97/x
  3. Step 3: Cross multiply
    41,999.42x = 62,978.60 × 18,326.97
  4. Step 4: Simplify right side
    41,999.42x = 1,154,206,912.84
  5. Step 5: Solve for x
    x = 1,154,206,912.84/41,999.42
  6. Step 6: Final answer
    x = 27,481.50

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1.5x scale

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.