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Finding the Fourth Proportional to 18,645.05, 27,963.53 and 6,162.12

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Solution

The fourth proportional to 18,645.05, 27,963.53 and 6,162.12 is: 9,241.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,645.05 : 27,963.53 = 6,162.12 : x
  2. Step 2: Convert to fraction form
    18,645.05/27,963.53 = 6,162.12/x
  3. Step 3: Cross multiply
    18,645.05x = 27,963.53 × 6,162.12
  4. Step 4: Simplify right side
    18,645.05x = 172,314,619.78
  5. Step 5: Solve for x
    x = 172,314,619.78/18,645.05
  6. Step 6: Final answer
    x = 9,241.84

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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.