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Finding the Fourth Proportional to 16,682.80, 25,024.20 and 4,370.80

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Solution

The fourth proportional to 16,682.80, 25,024.20 and 4,370.80 is: 6,556.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,682.80 : 25,024.20 = 4,370.80 : x
  2. Step 2: Convert to fraction form
    16,682.80/25,024.20 = 4,370.80/x
  3. Step 3: Cross multiply
    16,682.80x = 25,024.20 × 4,370.80
  4. Step 4: Simplify right side
    16,682.80x = 109,375,773.36
  5. Step 5: Solve for x
    x = 109,375,773.36/16,682.80
  6. Step 6: Final answer
    x = 6,556.20

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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.