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Finding the Fourth Proportional to 26,922.70, 40,369.65 and 11,322.70

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Solution

The fourth proportional to 26,922.70, 40,369.65 and 11,322.70 is: 16,977.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,922.70 : 40,369.65 = 11,322.70 : x
  2. Step 2: Convert to fraction form
    26,922.70/40,369.65 = 11,322.70/x
  3. Step 3: Cross multiply
    26,922.70x = 40,369.65 × 11,322.70
  4. Step 4: Simplify right side
    26,922.70x = 457,093,436.06
  5. Step 5: Solve for x
    x = 457,093,436.06/26,922.70
  6. Step 6: Final answer
    x = 16,977.99

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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.