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Finding the Fourth Proportional to 18,163.80, 27,246.78 and 7,066.80

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Solution

The fourth proportional to 18,163.80, 27,246.78 and 7,066.80 is: 10,600.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,163.80 : 27,246.78 = 7,066.80 : x
  2. Step 2: Convert to fraction form
    18,163.80/27,246.78 = 7,066.80/x
  3. Step 3: Cross multiply
    18,163.80x = 27,246.78 × 7,066.80
  4. Step 4: Simplify right side
    18,163.80x = 192,547,544.90
  5. Step 5: Solve for x
    x = 192,547,544.90/18,163.80
  6. Step 6: Final answer
    x = 10,600.62

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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.