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Finding the Fourth Proportional to 36,491.88, 54,714.72 and 15,421.08

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Solution

The fourth proportional to 36,491.88, 54,714.72 and 15,421.08 is: 23,121.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,491.88 : 54,714.72 = 15,421.08 : x
  2. Step 2: Convert to fraction form
    36,491.88/54,714.72 = 15,421.08/x
  3. Step 3: Cross multiply
    36,491.88x = 54,714.72 × 15,421.08
  4. Step 4: Simplify right side
    36,491.88x = 843,760,074.30
  5. Step 5: Solve for x
    x = 843,760,074.30/36,491.88
  6. Step 6: Final answer
    x = 23,121.86

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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.