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Finding the Fourth Proportional to 16,786.88, 25,180.88 and 5,100.06

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Solution

The fourth proportional to 16,786.88, 25,180.88 and 5,100.06 is: 7,650.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,786.88 : 25,180.88 = 5,100.06 : x
  2. Step 2: Convert to fraction form
    16,786.88/25,180.88 = 5,100.06/x
  3. Step 3: Cross multiply
    16,786.88x = 25,180.88 × 5,100.06
  4. Step 4: Simplify right side
    16,786.88x = 128,423,998.85
  5. Step 5: Solve for x
    x = 128,423,998.85/16,786.88
  6. Step 6: Final answer
    x = 7,650.26

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1.5x scale

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.