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Finding the Fourth Proportional to 36,221.40, 54,315.90 and 14,027.40

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Solution

The fourth proportional to 36,221.40, 54,315.90 and 14,027.40 is: 21,034.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,221.40 : 54,315.90 = 14,027.40 : x
  2. Step 2: Convert to fraction form
    36,221.40/54,315.90 = 14,027.40/x
  3. Step 3: Cross multiply
    36,221.40x = 54,315.90 × 14,027.40
  4. Step 4: Simplify right side
    36,221.40x = 761,910,855.66
  5. Step 5: Solve for x
    x = 761,910,855.66/36,221.40
  6. Step 6: Final answer
    x = 21,034.83

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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.