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Finding the Fourth Proportional to 59,391.80, 81,929.61 and 36,723.54

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Solution

The fourth proportional to 59,391.80, 81,929.61 and 36,723.54 is: 50,659.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,391.80 : 81,929.61 = 36,723.54 : x
  2. Step 2: Convert to fraction form
    59,391.80/81,929.61 = 36,723.54/x
  3. Step 3: Cross multiply
    59,391.80x = 81,929.61 × 36,723.54
  4. Step 4: Simplify right side
    59,391.80x = 3,008,745,617.26
  5. Step 5: Solve for x
    x = 3,008,745,617.26/59,391.80
  6. Step 6: Final answer
    x = 50,659.28

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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.