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Finding the Fourth Proportional to 18,647.37, 27,966.99 and 6,164.44

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Solution

The fourth proportional to 18,647.37, 27,966.99 and 6,164.44 is: 9,245.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,647.37 : 27,966.99 = 6,164.44 : x
  2. Step 2: Convert to fraction form
    18,647.37/27,966.99 = 6,164.44/x
  3. Step 3: Cross multiply
    18,647.37x = 27,966.99 × 6,164.44
  4. Step 4: Simplify right side
    18,647.37x = 172,400,831.84
  5. Step 5: Solve for x
    x = 172,400,831.84/18,647.37
  6. Step 6: Final answer
    x = 9,245.32

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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.