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Finding the Fourth Proportional to 16,728.63, 25,102.66 and 7,494.63

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Solution

The fourth proportional to 16,728.63, 25,102.66 and 7,494.63 is: 11,246.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,728.63 : 25,102.66 = 7,494.63 : x
  2. Step 2: Convert to fraction form
    16,728.63/25,102.66 = 7,494.63/x
  3. Step 3: Cross multiply
    16,728.63x = 25,102.66 × 7,494.63
  4. Step 4: Simplify right side
    16,728.63x = 188,135,004.47
  5. Step 5: Solve for x
    x = 188,135,004.47/16,728.63
  6. Step 6: Final answer
    x = 11,246.29

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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.