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Finding the Fourth Proportional to 58,517.25, 87,723.18 and 21,050.99

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Solution

The fourth proportional to 58,517.25, 87,723.18 and 21,050.99 is: 31,557.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,517.25 : 87,723.18 = 21,050.99 : x
  2. Step 2: Convert to fraction form
    58,517.25/87,723.18 = 21,050.99/x
  3. Step 3: Cross multiply
    58,517.25x = 87,723.18 × 21,050.99
  4. Step 4: Simplify right side
    58,517.25x = 1,846,659,346.33
  5. Step 5: Solve for x
    x = 1,846,659,346.33/58,517.25
  6. Step 6: Final answer
    x = 31,557.52

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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.