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Finding the Fourth Proportional to 26,993.50, 37,256.07 and 15,815.50

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Solution

The fourth proportional to 26,993.50, 37,256.07 and 15,815.50 is: 21,828.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,993.50 : 37,256.07 = 15,815.50 : x
  2. Step 2: Convert to fraction form
    26,993.50/37,256.07 = 15,815.50/x
  3. Step 3: Cross multiply
    26,993.50x = 37,256.07 × 15,815.50
  4. Step 4: Simplify right side
    26,993.50x = 589,223,375.09
  5. Step 5: Solve for x
    x = 589,223,375.09/26,993.50
  6. Step 6: Final answer
    x = 21,828.34

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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.