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Finding the Fourth Proportional to 18,223.89, 27,324.17 and 7,691.06

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Solution

The fourth proportional to 18,223.89, 27,324.17 and 7,691.06 is: 11,531.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,223.89 : 27,324.17 = 7,691.06 : x
  2. Step 2: Convert to fraction form
    18,223.89/27,324.17 = 7,691.06/x
  3. Step 3: Cross multiply
    18,223.89x = 27,324.17 × 7,691.06
  4. Step 4: Simplify right side
    18,223.89x = 210,151,830.92
  5. Step 5: Solve for x
    x = 210,151,830.92/18,223.89
  6. Step 6: Final answer
    x = 11,531.67

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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.