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Finding the Fourth Proportional to 18,561.81, 27,841.26 and 7,460.67

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Solution

The fourth proportional to 18,561.81, 27,841.26 and 7,460.67 is: 11,190.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,561.81 : 27,841.26 = 7,460.67 : x
  2. Step 2: Convert to fraction form
    18,561.81/27,841.26 = 7,460.67/x
  3. Step 3: Cross multiply
    18,561.81x = 27,841.26 × 7,460.67
  4. Step 4: Simplify right side
    18,561.81x = 207,714,453.24
  5. Step 5: Solve for x
    x = 207,714,453.24/18,561.81
  6. Step 6: Final answer
    x = 11,190.42

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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.