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Finding the Fourth Proportional to 58,596.64, 80,863.21 and 31,739.22

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Solution

The fourth proportional to 58,596.64, 80,863.21 and 31,739.22 is: 43,800.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,596.64 : 80,863.21 = 31,739.22 : x
  2. Step 2: Convert to fraction form
    58,596.64/80,863.21 = 31,739.22/x
  3. Step 3: Cross multiply
    58,596.64x = 80,863.21 × 31,739.22
  4. Step 4: Simplify right side
    58,596.64x = 2,566,535,212.10
  5. Step 5: Solve for x
    x = 2,566,535,212.10/58,596.64
  6. Step 6: Final answer
    x = 43,800.04

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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.