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Finding the Fourth Proportional to 37,874.88, 52,269.12 and 21,108

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Solution

The fourth proportional to 37,874.88, 52,269.12 and 21,108 is: 29,130.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,874.88 : 52,269.12 = 21,108 : x
  2. Step 2: Convert to fraction form
    37,874.88/52,269.12 = 21,108/x
  3. Step 3: Cross multiply
    37,874.88x = 52,269.12 × 21,108
  4. Step 4: Simplify right side
    37,874.88x = 1,103,296,584.96
  5. Step 5: Solve for x
    x = 1,103,296,584.96/37,874.88
  6. Step 6: Final answer
    x = 29,130.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.