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Finding the Fourth Proportional to 18,165.10, 27,236.71 and 11,844.67

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Solution

The fourth proportional to 18,165.10, 27,236.71 and 11,844.67 is: 17,759.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,165.10 : 27,236.71 = 11,844.67 : x
  2. Step 2: Convert to fraction form
    18,165.10/27,236.71 = 11,844.67/x
  3. Step 3: Cross multiply
    18,165.10x = 27,236.71 × 11,844.67
  4. Step 4: Simplify right side
    18,165.10x = 322,609,841.84
  5. Step 5: Solve for x
    x = 322,609,841.84/18,165.10
  6. Step 6: Final answer
    x = 17,759.87

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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.