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Finding the Fourth Proportional to 18,453.99, 27,667.58 and 7,357.35

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Solution

The fourth proportional to 18,453.99, 27,667.58 and 7,357.35 is: 11,030.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,453.99 : 27,667.58 = 7,357.35 : x
  2. Step 2: Convert to fraction form
    18,453.99/27,667.58 = 7,357.35/x
  3. Step 3: Cross multiply
    18,453.99x = 27,667.58 × 7,357.35
  4. Step 4: Simplify right side
    18,453.99x = 203,560,105.50
  5. Step 5: Solve for x
    x = 203,560,105.50/18,453.99
  6. Step 6: Final answer
    x = 11,030.68

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Similar ratio
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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.