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Finding the Fourth Proportional to 18,841.98, 25,993.61 and 11,669.99

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Solution

The fourth proportional to 18,841.98, 25,993.61 and 11,669.99 is: 16,099.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,841.98 : 25,993.61 = 11,669.99 : x
  2. Step 2: Convert to fraction form
    18,841.98/25,993.61 = 11,669.99/x
  3. Step 3: Cross multiply
    18,841.98x = 25,993.61 × 11,669.99
  4. Step 4: Simplify right side
    18,841.98x = 303,344,980.45
  5. Step 5: Solve for x
    x = 303,344,980.45/18,841.98
  6. Step 6: Final answer
    x = 16,099.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.