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Finding the Fourth Proportional to 18,448.25, 27,672.38 and 6,136.25

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Solution

The fourth proportional to 18,448.25, 27,672.38 and 6,136.25 is: 9,204.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,448.25 : 27,672.38 = 6,136.25 : x
  2. Step 2: Convert to fraction form
    18,448.25/27,672.38 = 6,136.25/x
  3. Step 3: Cross multiply
    18,448.25x = 27,672.38 × 6,136.25
  4. Step 4: Simplify right side
    18,448.25x = 169,804,611.09
  5. Step 5: Solve for x
    x = 169,804,611.09/18,448.25
  6. Step 6: Final answer
    x = 9,204.38

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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.