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Finding the Fourth Proportional to 30,589.94, 42,232.21 and 19,269.14

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Solution

The fourth proportional to 30,589.94, 42,232.21 and 19,269.14 is: 26,602.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,589.94 : 42,232.21 = 19,269.14 : x
  2. Step 2: Convert to fraction form
    30,589.94/42,232.21 = 19,269.14/x
  3. Step 3: Cross multiply
    30,589.94x = 42,232.21 × 19,269.14
  4. Step 4: Simplify right side
    30,589.94x = 813,778,367.00
  5. Step 5: Solve for x
    x = 813,778,367.00/30,589.94
  6. Step 6: Final answer
    x = 26,602.81

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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.