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Finding the Fourth Proportional to 22,603.80, 33,906.30 and 7,021.80

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Solution

The fourth proportional to 22,603.80, 33,906.30 and 7,021.80 is: 10,532.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,603.80 : 33,906.30 = 7,021.80 : x
  2. Step 2: Convert to fraction form
    22,603.80/33,906.30 = 7,021.80/x
  3. Step 3: Cross multiply
    22,603.80x = 33,906.30 × 7,021.80
  4. Step 4: Simplify right side
    22,603.80x = 238,083,257.34
  5. Step 5: Solve for x
    x = 238,083,257.34/22,603.80
  6. Step 6: Final answer
    x = 10,532.89

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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.