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Finding the Fourth Proportional to 14,619.84, 21,933 and 4,231.68

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Solution

The fourth proportional to 14,619.84, 21,933 and 4,231.68 is: 6,348.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,619.84 : 21,933 = 4,231.68 : x
  2. Step 2: Convert to fraction form
    14,619.84/21,933 = 4,231.68/x
  3. Step 3: Cross multiply
    14,619.84x = 21,933 × 4,231.68
  4. Step 4: Simplify right side
    14,619.84x = 92,813,437.44
  5. Step 5: Solve for x
    x = 92,813,437.44/14,619.84
  6. Step 6: Final answer
    x = 6,348.46

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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.