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Finding the Fourth Proportional to 19,392.75, 26,760.60 and 10,894.43

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Solution

The fourth proportional to 19,392.75, 26,760.60 and 10,894.43 is: 15,033.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,392.75 : 26,760.60 = 10,894.43 : x
  2. Step 2: Convert to fraction form
    19,392.75/26,760.60 = 10,894.43/x
  3. Step 3: Cross multiply
    19,392.75x = 26,760.60 × 10,894.43
  4. Step 4: Simplify right side
    19,392.75x = 291,541,550.36
  5. Step 5: Solve for x
    x = 291,541,550.36/19,392.75
  6. Step 6: Final answer
    x = 15,033.53

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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.