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Finding the Fourth Proportional to 16,908.66, 25,368.39 and 8,144.46

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Solution

The fourth proportional to 16,908.66, 25,368.39 and 8,144.46 is: 12,219.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,908.66 : 25,368.39 = 8,144.46 : x
  2. Step 2: Convert to fraction form
    16,908.66/25,368.39 = 8,144.46/x
  3. Step 3: Cross multiply
    16,908.66x = 25,368.39 × 8,144.46
  4. Step 4: Simplify right side
    16,908.66x = 206,611,837.62
  5. Step 5: Solve for x
    x = 206,611,837.62/16,908.66
  6. Step 6: Final answer
    x = 12,219.29

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1.5x scale

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.