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Finding the Fourth Proportional to 36,514.88, 54,772.31 and 8,812.88

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Solution

The fourth proportional to 36,514.88, 54,772.31 and 8,812.88 is: 13,219.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,514.88 : 54,772.31 = 8,812.88 : x
  2. Step 2: Convert to fraction form
    36,514.88/54,772.31 = 8,812.88/x
  3. Step 3: Cross multiply
    36,514.88x = 54,772.31 × 8,812.88
  4. Step 4: Simplify right side
    36,514.88x = 482,701,543.52
  5. Step 5: Solve for x
    x = 482,701,543.52/36,514.88
  6. Step 6: Final answer
    x = 13,219.31

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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.