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Finding the Fourth Proportional to 16,914.60, 25,379.10 and 10,679.40

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Solution

The fourth proportional to 16,914.60, 25,379.10 and 10,679.40 is: 16,023.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,914.60 : 25,379.10 = 10,679.40 : x
  2. Step 2: Convert to fraction form
    16,914.60/25,379.10 = 10,679.40/x
  3. Step 3: Cross multiply
    16,914.60x = 25,379.10 × 10,679.40
  4. Step 4: Simplify right side
    16,914.60x = 271,033,560.54
  5. Step 5: Solve for x
    x = 271,033,560.54/16,914.60
  6. Step 6: Final answer
    x = 16,023.65

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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.