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Finding the Fourth Proportional to 58,605.33, 80,871.36 and 33,112.77

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Solution

The fourth proportional to 58,605.33, 80,871.36 and 33,112.77 is: 45,693.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,605.33 : 80,871.36 = 33,112.77 : x
  2. Step 2: Convert to fraction form
    58,605.33/80,871.36 = 33,112.77/x
  3. Step 3: Cross multiply
    58,605.33x = 80,871.36 × 33,112.77
  4. Step 4: Simplify right side
    58,605.33x = 2,677,874,743.27
  5. Step 5: Solve for x
    x = 2,677,874,743.27/58,605.33
  6. Step 6: Final answer
    x = 45,693.37

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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.