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Finding the Fourth Proportional to 72,475.26, 108,750 and 33,027.30

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Solution

The fourth proportional to 72,475.26, 108,750 and 33,027.30 is: 49,557.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,475.26 : 108,750 = 33,027.30 : x
  2. Step 2: Convert to fraction form
    72,475.26/108,750 = 33,027.30/x
  3. Step 3: Cross multiply
    72,475.26x = 108,750 × 33,027.30
  4. Step 4: Simplify right side
    72,475.26x = 3,591,718,875.00
  5. Step 5: Solve for x
    x = 3,591,718,875.00/72,475.26
  6. Step 6: Final answer
    x = 49,557.86

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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.