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Finding the Fourth Proportional to 18,616.84, 27,926.17 and 6,136.81

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Solution

The fourth proportional to 18,616.84, 27,926.17 and 6,136.81 is: 9,205.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,616.84 : 27,926.17 = 6,136.81 : x
  2. Step 2: Convert to fraction form
    18,616.84/27,926.17 = 6,136.81/x
  3. Step 3: Cross multiply
    18,616.84x = 27,926.17 × 6,136.81
  4. Step 4: Simplify right side
    18,616.84x = 171,377,671.24
  5. Step 5: Solve for x
    x = 171,377,671.24/18,616.84
  6. Step 6: Final answer
    x = 9,205.52

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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.