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Finding the Fourth Proportional to 43,405.60, 65,108.40 and 23,722.60

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Solution

The fourth proportional to 43,405.60, 65,108.40 and 23,722.60 is: 35,583.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,405.60 : 65,108.40 = 23,722.60 : x
  2. Step 2: Convert to fraction form
    43,405.60/65,108.40 = 23,722.60/x
  3. Step 3: Cross multiply
    43,405.60x = 65,108.40 × 23,722.60
  4. Step 4: Simplify right side
    43,405.60x = 1,544,540,529.84
  5. Step 5: Solve for x
    x = 1,544,540,529.84/43,405.60
  6. Step 6: Final answer
    x = 35,583.90

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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.