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Finding the Fourth Proportional to 18,919.52, 26,107.79 and 10,960.37

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Solution

The fourth proportional to 18,919.52, 26,107.79 and 10,960.37 is: 15,124.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,919.52 : 26,107.79 = 10,960.37 : x
  2. Step 2: Convert to fraction form
    18,919.52/26,107.79 = 10,960.37/x
  3. Step 3: Cross multiply
    18,919.52x = 26,107.79 × 10,960.37
  4. Step 4: Simplify right side
    18,919.52x = 286,150,852.94
  5. Step 5: Solve for x
    x = 286,150,852.94/18,919.52
  6. Step 6: Final answer
    x = 15,124.64

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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.