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Finding the Fourth Proportional to 58,587.64, 80,850.30 and 31,729.48

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Solution

The fourth proportional to 58,587.64, 80,850.30 and 31,729.48 is: 43,786.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,587.64 : 80,850.30 = 31,729.48 : x
  2. Step 2: Convert to fraction form
    58,587.64/80,850.30 = 31,729.48/x
  3. Step 3: Cross multiply
    58,587.64x = 80,850.30 × 31,729.48
  4. Step 4: Simplify right side
    58,587.64x = 2,565,337,976.84
  5. Step 5: Solve for x
    x = 2,565,337,976.84/58,587.64
  6. Step 6: Final answer
    x = 43,786.33

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.