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Finding the Fourth Proportional to 16,805.80, 25,208.70 and 8,057.80

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Solution

The fourth proportional to 16,805.80, 25,208.70 and 8,057.80 is: 12,086.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,805.80 : 25,208.70 = 8,057.80 : x
  2. Step 2: Convert to fraction form
    16,805.80/25,208.70 = 8,057.80/x
  3. Step 3: Cross multiply
    16,805.80x = 25,208.70 × 8,057.80
  4. Step 4: Simplify right side
    16,805.80x = 203,126,662.86
  5. Step 5: Solve for x
    x = 203,126,662.86/16,805.80
  6. Step 6: Final answer
    x = 12,086.70

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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.