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Finding the Fourth Proportional to 31,970.56, 44,123.64 and 18,363.96

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Solution

The fourth proportional to 31,970.56, 44,123.64 and 18,363.96 is: 25,344.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,970.56 : 44,123.64 = 18,363.96 : x
  2. Step 2: Convert to fraction form
    31,970.56/44,123.64 = 18,363.96/x
  3. Step 3: Cross multiply
    31,970.56x = 44,123.64 × 18,363.96
  4. Step 4: Simplify right side
    31,970.56x = 810,284,760.01
  5. Step 5: Solve for x
    x = 810,284,760.01/31,970.56
  6. Step 6: Final answer
    x = 25,344.72

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.