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Finding the Fourth Proportional to 40,643.73, 56,087.87 and 22,738.68

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Solution

The fourth proportional to 40,643.73, 56,087.87 and 22,738.68 is: 31,379.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,643.73 : 56,087.87 = 22,738.68 : x
  2. Step 2: Convert to fraction form
    40,643.73/56,087.87 = 22,738.68/x
  3. Step 3: Cross multiply
    40,643.73x = 56,087.87 × 22,738.68
  4. Step 4: Simplify right side
    40,643.73x = 1,275,364,014.12
  5. Step 5: Solve for x
    x = 1,275,364,014.12/40,643.73
  6. Step 6: Final answer
    x = 31,379.11

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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.