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Finding the Fourth Proportional to 58,620.54, 80,896.44 and 31,763.28

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Solution

The fourth proportional to 58,620.54, 80,896.44 and 31,763.28 is: 43,833.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,620.54 : 80,896.44 = 31,763.28 : x
  2. Step 2: Convert to fraction form
    58,620.54/80,896.44 = 31,763.28/x
  3. Step 3: Cross multiply
    58,620.54x = 80,896.44 × 31,763.28
  4. Step 4: Simplify right side
    58,620.54x = 2,569,536,274.72
  5. Step 5: Solve for x
    x = 2,569,536,274.72/58,620.54
  6. Step 6: Final answer
    x = 43,833.38

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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.