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Finding the Fourth Proportional to 28,945.60, 43,353.60 and 23,761.60

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Solution

The fourth proportional to 28,945.60, 43,353.60 and 23,761.60 is: 35,589.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,945.60 : 43,353.60 = 23,761.60 : x
  2. Step 2: Convert to fraction form
    28,945.60/43,353.60 = 23,761.60/x
  3. Step 3: Cross multiply
    28,945.60x = 43,353.60 × 23,761.60
  4. Step 4: Simplify right side
    28,945.60x = 1,030,150,901.76
  5. Step 5: Solve for x
    x = 1,030,150,901.76/28,945.60
  6. Step 6: Final answer
    x = 35,589.21

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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.