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Finding the Fourth Proportional to 17,108.20, 25,662.30 and 16,427.80

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Solution

The fourth proportional to 17,108.20, 25,662.30 and 16,427.80 is: 24,641.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,108.20 : 25,662.30 = 16,427.80 : x
  2. Step 2: Convert to fraction form
    17,108.20/25,662.30 = 16,427.80/x
  3. Step 3: Cross multiply
    17,108.20x = 25,662.30 × 16,427.80
  4. Step 4: Simplify right side
    17,108.20x = 421,575,131.94
  5. Step 5: Solve for x
    x = 421,575,131.94/17,108.20
  6. Step 6: Final answer
    x = 24,641.70

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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.