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Finding the Fourth Proportional to 36,603.88, 54,905.28 and 11,645.44

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Solution

The fourth proportional to 36,603.88, 54,905.28 and 11,645.44 is: 17,467.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,603.88 : 54,905.28 = 11,645.44 : x
  2. Step 2: Convert to fraction form
    36,603.88/54,905.28 = 11,645.44/x
  3. Step 3: Cross multiply
    36,603.88x = 54,905.28 × 11,645.44
  4. Step 4: Simplify right side
    36,603.88x = 639,396,143.92
  5. Step 5: Solve for x
    x = 639,396,143.92/36,603.88
  6. Step 6: Final answer
    x = 17,467.99

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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.