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Finding the Fourth Proportional to 14,858.43, 20,467.44 and 11,315.49

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Solution

The fourth proportional to 14,858.43, 20,467.44 and 11,315.49 is: 15,587.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,858.43 : 20,467.44 = 11,315.49 : x
  2. Step 2: Convert to fraction form
    14,858.43/20,467.44 = 11,315.49/x
  3. Step 3: Cross multiply
    14,858.43x = 20,467.44 × 11,315.49
  4. Step 4: Simplify right side
    14,858.43x = 231,599,112.65
  5. Step 5: Solve for x
    x = 231,599,112.65/14,858.43
  6. Step 6: Final answer
    x = 15,587.05

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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.