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Finding the Fourth Proportional to 27,392.97, 37,806.94 and 15,906.09

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Solution

The fourth proportional to 27,392.97, 37,806.94 and 15,906.09 is: 21,953.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,392.97 : 37,806.94 = 15,906.09 : x
  2. Step 2: Convert to fraction form
    27,392.97/37,806.94 = 15,906.09/x
  3. Step 3: Cross multiply
    27,392.97x = 37,806.94 × 15,906.09
  4. Step 4: Simplify right side
    27,392.97x = 601,360,751.92
  5. Step 5: Solve for x
    x = 601,360,751.92/27,392.97
  6. Step 6: Final answer
    x = 21,953.10

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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.