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Finding the Fourth Proportional to 11,305.36, 16,953.18 and 4,375

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Solution

The fourth proportional to 11,305.36, 16,953.18 and 4,375 is: 6,560.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,305.36 : 16,953.18 = 4,375 : x
  2. Step 2: Convert to fraction form
    11,305.36/16,953.18 = 4,375/x
  3. Step 3: Cross multiply
    11,305.36x = 16,953.18 × 4,375
  4. Step 4: Simplify right side
    11,305.36x = 74,170,162.50
  5. Step 5: Solve for x
    x = 74,170,162.50/11,305.36
  6. Step 6: Final answer
    x = 6,560.62

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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.