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Finding the Fourth Proportional to 58,561.44, 80,815.42 and 31,704.51

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Solution

The fourth proportional to 58,561.44, 80,815.42 and 31,704.51 is: 43,752.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,561.44 : 80,815.42 = 31,704.51 : x
  2. Step 2: Convert to fraction form
    58,561.44/80,815.42 = 31,704.51/x
  3. Step 3: Cross multiply
    58,561.44x = 80,815.42 × 31,704.51
  4. Step 4: Simplify right side
    58,561.44x = 2,562,213,291.54
  5. Step 5: Solve for x
    x = 2,562,213,291.54/58,561.44
  6. Step 6: Final answer
    x = 43,752.57

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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.