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Finding the Fourth Proportional to 18,211.01, 27,318.63 and 6,361.12

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Solution

The fourth proportional to 18,211.01, 27,318.63 and 6,361.12 is: 9,542.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,211.01 : 27,318.63 = 6,361.12 : x
  2. Step 2: Convert to fraction form
    18,211.01/27,318.63 = 6,361.12/x
  3. Step 3: Cross multiply
    18,211.01x = 27,318.63 × 6,361.12
  4. Step 4: Simplify right side
    18,211.01x = 173,776,947.07
  5. Step 5: Solve for x
    x = 173,776,947.07/18,211.01
  6. Step 6: Final answer
    x = 9,542.41

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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.