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Finding the Fourth Proportional to 18,163.23, 25,065.62 and 10,205.99

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Solution

The fourth proportional to 18,163.23, 25,065.62 and 10,205.99 is: 14,084.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,163.23 : 25,065.62 = 10,205.99 : x
  2. Step 2: Convert to fraction form
    18,163.23/25,065.62 = 10,205.99/x
  3. Step 3: Cross multiply
    18,163.23x = 25,065.62 × 10,205.99
  4. Step 4: Simplify right side
    18,163.23x = 255,819,467.06
  5. Step 5: Solve for x
    x = 255,819,467.06/18,163.23
  6. Step 6: Final answer
    x = 14,084.47

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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.