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Finding the Fourth Proportional to 17,716.80, 26,575.20 and 16,692.80

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Solution

The fourth proportional to 17,716.80, 26,575.20 and 16,692.80 is: 25,039.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,716.80 : 26,575.20 = 16,692.80 : x
  2. Step 2: Convert to fraction form
    17,716.80/26,575.20 = 16,692.80/x
  3. Step 3: Cross multiply
    17,716.80x = 26,575.20 × 16,692.80
  4. Step 4: Simplify right side
    17,716.80x = 443,614,498.56
  5. Step 5: Solve for x
    x = 443,614,498.56/17,716.80
  6. Step 6: Final answer
    x = 25,039.20

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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.