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Finding the Fourth Proportional to 12,754.40, 19,137.44 and 5,736.26

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Solution

The fourth proportional to 12,754.40, 19,137.44 and 5,736.26 is: 8,607.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,754.40 : 19,137.44 = 5,736.26 : x
  2. Step 2: Convert to fraction form
    12,754.40/19,137.44 = 5,736.26/x
  3. Step 3: Cross multiply
    12,754.40x = 19,137.44 × 5,736.26
  4. Step 4: Simplify right side
    12,754.40x = 109,777,393.76
  5. Step 5: Solve for x
    x = 109,777,393.76/12,754.40
  6. Step 6: Final answer
    x = 8,607.02

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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.