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Finding the Fourth Proportional to 30,989.82, 46,458.82 and 14,361.77

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Solution

The fourth proportional to 30,989.82, 46,458.82 and 14,361.77 is: 21,530.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,989.82 : 46,458.82 = 14,361.77 : x
  2. Step 2: Convert to fraction form
    30,989.82/46,458.82 = 14,361.77/x
  3. Step 3: Cross multiply
    30,989.82x = 46,458.82 × 14,361.77
  4. Step 4: Simplify right side
    30,989.82x = 667,230,887.31
  5. Step 5: Solve for x
    x = 667,230,887.31/30,989.82
  6. Step 6: Final answer
    x = 21,530.65

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.