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Finding the Fourth Proportional to 36,590.88, 54,893.97 and 20,803.17

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Solution

The fourth proportional to 36,590.88, 54,893.97 and 20,803.17 is: 31,209.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,590.88 : 54,893.97 = 20,803.17 : x
  2. Step 2: Convert to fraction form
    36,590.88/54,893.97 = 20,803.17/x
  3. Step 3: Cross multiply
    36,590.88x = 54,893.97 × 20,803.17
  4. Step 4: Simplify right side
    36,590.88x = 1,141,968,589.88
  5. Step 5: Solve for x
    x = 1,141,968,589.88/36,590.88
  6. Step 6: Final answer
    x = 31,209.10

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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.