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Finding the Fourth Proportional to 19,504.60, 26,919.84 and 11,550.76

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Solution

The fourth proportional to 19,504.60, 26,919.84 and 11,550.76 is: 15,942.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,504.60 : 26,919.84 = 11,550.76 : x
  2. Step 2: Convert to fraction form
    19,504.60/26,919.84 = 11,550.76/x
  3. Step 3: Cross multiply
    19,504.60x = 26,919.84 × 11,550.76
  4. Step 4: Simplify right side
    19,504.60x = 310,944,611.08
  5. Step 5: Solve for x
    x = 310,944,611.08/19,504.60
  6. Step 6: Final answer
    x = 15,942.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.