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Finding the Fourth Proportional to 18,355.44, 27,544.92 and 6,667.60

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Solution

The fourth proportional to 18,355.44, 27,544.92 and 6,667.60 is: 10,005.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,355.44 : 27,544.92 = 6,667.60 : x
  2. Step 2: Convert to fraction form
    18,355.44/27,544.92 = 6,667.60/x
  3. Step 3: Cross multiply
    18,355.44x = 27,544.92 × 6,667.60
  4. Step 4: Simplify right side
    18,355.44x = 183,658,508.59
  5. Step 5: Solve for x
    x = 183,658,508.59/18,355.44
  6. Step 6: Final answer
    x = 10,005.67

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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.