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Finding the Fourth Proportional to 58,731.80, 87,917.70 and 32,355.80

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Solution

The fourth proportional to 58,731.80, 87,917.70 and 32,355.80 is: 48,434.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,731.80 : 87,917.70 = 32,355.80 : x
  2. Step 2: Convert to fraction form
    58,731.80/87,917.70 = 32,355.80/x
  3. Step 3: Cross multiply
    58,731.80x = 87,917.70 × 32,355.80
  4. Step 4: Simplify right side
    58,731.80x = 2,844,647,517.66
  5. Step 5: Solve for x
    x = 2,844,647,517.66/58,731.80
  6. Step 6: Final answer
    x = 48,434.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.