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Finding the Fourth Proportional to 12,835, 19,260.18 and 5,539

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Solution

The fourth proportional to 12,835, 19,260.18 and 5,539 is: 8,311.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,835 : 19,260.18 = 5,539 : x
  2. Step 2: Convert to fraction form
    12,835/19,260.18 = 5,539/x
  3. Step 3: Cross multiply
    12,835x = 19,260.18 × 5,539
  4. Step 4: Simplify right side
    12,835x = 106,682,137.02
  5. Step 5: Solve for x
    x = 106,682,137.02/12,835
  6. Step 6: Final answer
    x = 8,311.81

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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.