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Finding the Fourth Proportional to 18,163.45, 27,246.93 and 7,071.04

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Solution

The fourth proportional to 18,163.45, 27,246.93 and 7,071.04 is: 10,607.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,163.45 : 27,246.93 = 7,071.04 : x
  2. Step 2: Convert to fraction form
    18,163.45/27,246.93 = 7,071.04/x
  3. Step 3: Cross multiply
    18,163.45x = 27,246.93 × 7,071.04
  4. Step 4: Simplify right side
    18,163.45x = 192,664,131.91
  5. Step 5: Solve for x
    x = 192,664,131.91/18,163.45
  6. Step 6: Final answer
    x = 10,607.24

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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.