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Finding the Fourth Proportional to 19,198.10, 26,487.84 and 12,493.58

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Solution

The fourth proportional to 19,198.10, 26,487.84 and 12,493.58 is: 17,237.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,198.10 : 26,487.84 = 12,493.58 : x
  2. Step 2: Convert to fraction form
    19,198.10/26,487.84 = 12,493.58/x
  3. Step 3: Cross multiply
    19,198.10x = 26,487.84 × 12,493.58
  4. Step 4: Simplify right side
    19,198.10x = 330,927,948.07
  5. Step 5: Solve for x
    x = 330,927,948.07/19,198.10
  6. Step 6: Final answer
    x = 17,237.54

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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.