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Finding the Fourth Proportional to 12,305.44, 16,981.41 and 6,716.44

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Solution

The fourth proportional to 12,305.44, 16,981.41 and 6,716.44 is: 9,268.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,305.44 : 16,981.41 = 6,716.44 : x
  2. Step 2: Convert to fraction form
    12,305.44/16,981.41 = 6,716.44/x
  3. Step 3: Cross multiply
    12,305.44x = 16,981.41 × 6,716.44
  4. Step 4: Simplify right side
    12,305.44x = 114,054,621.38
  5. Step 5: Solve for x
    x = 114,054,621.38/12,305.44
  6. Step 6: Final answer
    x = 9,268.63

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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.