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Finding the Fourth Proportional to 66,757.53, 100,132.65 and 16,837.65

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Solution

The fourth proportional to 66,757.53, 100,132.65 and 16,837.65 is: 25,255.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,757.53 : 100,132.65 = 16,837.65 : x
  2. Step 2: Convert to fraction form
    66,757.53/100,132.65 = 16,837.65/x
  3. Step 3: Cross multiply
    66,757.53x = 100,132.65 × 16,837.65
  4. Step 4: Simplify right side
    66,757.53x = 1,685,998,514.27
  5. Step 5: Solve for x
    x = 1,685,998,514.27/66,757.53
  6. Step 6: Final answer
    x = 25,255.56

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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.