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Finding the Fourth Proportional to 18,162.63, 27,245.16 and 7,068.60

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Solution

The fourth proportional to 18,162.63, 27,245.16 and 7,068.60 is: 10,603.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,162.63 : 27,245.16 = 7,068.60 : x
  2. Step 2: Convert to fraction form
    18,162.63/27,245.16 = 7,068.60/x
  3. Step 3: Cross multiply
    18,162.63x = 27,245.16 × 7,068.60
  4. Step 4: Simplify right side
    18,162.63x = 192,585,137.98
  5. Step 5: Solve for x
    x = 192,585,137.98/18,162.63
  6. Step 6: Final answer
    x = 10,603.37

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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.