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Finding the Fourth Proportional to 58,561.56, 80,814.94 and 31,704.05

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Solution

The fourth proportional to 58,561.56, 80,814.94 and 31,704.05 is: 43,751.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,561.56 : 80,814.94 = 31,704.05 : x
  2. Step 2: Convert to fraction form
    58,561.56/80,814.94 = 31,704.05/x
  3. Step 3: Cross multiply
    58,561.56x = 80,814.94 × 31,704.05
  4. Step 4: Simplify right side
    58,561.56x = 2,562,160,739.99
  5. Step 5: Solve for x
    x = 2,562,160,739.99/58,561.56
  6. Step 6: Final answer
    x = 43,751.58

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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.