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Finding the Fourth Proportional to 16,883.21, 25,311.11 and 7,029.86

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Solution

The fourth proportional to 16,883.21, 25,311.11 and 7,029.86 is: 10,539.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,883.21 : 25,311.11 = 7,029.86 : x
  2. Step 2: Convert to fraction form
    16,883.21/25,311.11 = 7,029.86/x
  3. Step 3: Cross multiply
    16,883.21x = 25,311.11 × 7,029.86
  4. Step 4: Simplify right side
    16,883.21x = 177,933,398.04
  5. Step 5: Solve for x
    x = 177,933,398.04/16,883.21
  6. Step 6: Final answer
    x = 10,539.08

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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.