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Finding the Fourth Proportional to 26,662.59, 36,806.11 and 15,911.19

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Solution

The fourth proportional to 26,662.59, 36,806.11 and 15,911.19 is: 21,964.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,662.59 : 36,806.11 = 15,911.19 : x
  2. Step 2: Convert to fraction form
    26,662.59/36,806.11 = 15,911.19/x
  3. Step 3: Cross multiply
    26,662.59x = 36,806.11 × 15,911.19
  4. Step 4: Simplify right side
    26,662.59x = 585,629,009.37
  5. Step 5: Solve for x
    x = 585,629,009.37/26,662.59
  6. Step 6: Final answer
    x = 21,964.45

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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.