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Finding the Fourth Proportional to 18,662.98, 27,995.49 and 7,568.02

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Solution

The fourth proportional to 18,662.98, 27,995.49 and 7,568.02 is: 11,352.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,662.98 : 27,995.49 = 7,568.02 : x
  2. Step 2: Convert to fraction form
    18,662.98/27,995.49 = 7,568.02/x
  3. Step 3: Cross multiply
    18,662.98x = 27,995.49 × 7,568.02
  4. Step 4: Simplify right side
    18,662.98x = 211,870,428.23
  5. Step 5: Solve for x
    x = 211,870,428.23/18,662.98
  6. Step 6: Final answer
    x = 11,352.44

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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.