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Finding the Fourth Proportional to 26,809.80, 40,137.90 and 16,441.80

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Solution

The fourth proportional to 26,809.80, 40,137.90 and 16,441.80 is: 24,615.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,809.80 : 40,137.90 = 16,441.80 : x
  2. Step 2: Convert to fraction form
    26,809.80/40,137.90 = 16,441.80/x
  3. Step 3: Cross multiply
    26,809.80x = 40,137.90 × 16,441.80
  4. Step 4: Simplify right side
    26,809.80x = 659,939,324.22
  5. Step 5: Solve for x
    x = 659,939,324.22/26,809.80
  6. Step 6: Final answer
    x = 24,615.60

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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.