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Finding the Fourth Proportional to 18,453.90, 27,667.44 and 7,357.26

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Solution

The fourth proportional to 18,453.90, 27,667.44 and 7,357.26 is: 11,030.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,453.90 : 27,667.44 = 7,357.26 : x
  2. Step 2: Convert to fraction form
    18,453.90/27,667.44 = 7,357.26/x
  3. Step 3: Cross multiply
    18,453.90x = 27,667.44 × 7,357.26
  4. Step 4: Simplify right side
    18,453.90x = 203,556,477.05
  5. Step 5: Solve for x
    x = 203,556,477.05/18,453.90
  6. Step 6: Final answer
    x = 11,030.54

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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.