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Finding the Fourth Proportional to 33,221.70, 45,846.09 and 19,799.70

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Solution

The fourth proportional to 33,221.70, 45,846.09 and 19,799.70 is: 27,323.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,221.70 : 45,846.09 = 19,799.70 : x
  2. Step 2: Convert to fraction form
    33,221.70/45,846.09 = 19,799.70/x
  3. Step 3: Cross multiply
    33,221.70x = 45,846.09 × 19,799.70
  4. Step 4: Simplify right side
    33,221.70x = 907,738,828.17
  5. Step 5: Solve for x
    x = 907,738,828.17/33,221.70
  6. Step 6: Final answer
    x = 27,323.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.