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Finding the Fourth Proportional to 17,771.70, 26,657.55 and 16,677.30

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Solution

The fourth proportional to 17,771.70, 26,657.55 and 16,677.30 is: 25,015.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,771.70 : 26,657.55 = 16,677.30 : x
  2. Step 2: Convert to fraction form
    17,771.70/26,657.55 = 16,677.30/x
  3. Step 3: Cross multiply
    17,771.70x = 26,657.55 × 16,677.30
  4. Step 4: Simplify right side
    17,771.70x = 444,575,958.62
  5. Step 5: Solve for x
    x = 444,575,958.62/17,771.70
  6. Step 6: Final answer
    x = 25,015.95

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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.