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Finding the Fourth Proportional to 11,641.58, 17,451.09 and 4,619.28

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Solution

The fourth proportional to 11,641.58, 17,451.09 and 4,619.28 is: 6,924.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,641.58 : 17,451.09 = 4,619.28 : x
  2. Step 2: Convert to fraction form
    11,641.58/17,451.09 = 4,619.28/x
  3. Step 3: Cross multiply
    11,641.58x = 17,451.09 × 4,619.28
  4. Step 4: Simplify right side
    11,641.58x = 80,611,471.02
  5. Step 5: Solve for x
    x = 80,611,471.02/11,641.58
  6. Step 6: Final answer
    x = 6,924.44

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Why These Related Problems?

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