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Finding the Fourth Proportional to 43,902.40, 65,756.40 and 34,009.60

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Solution

The fourth proportional to 43,902.40, 65,756.40 and 34,009.60 is: 50,939.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,902.40 : 65,756.40 = 34,009.60 : x
  2. Step 2: Convert to fraction form
    43,902.40/65,756.40 = 34,009.60/x
  3. Step 3: Cross multiply
    43,902.40x = 65,756.40 × 34,009.60
  4. Step 4: Simplify right side
    43,902.40x = 2,236,348,861.44
  5. Step 5: Solve for x
    x = 2,236,348,861.44/43,902.40
  6. Step 6: Final answer
    x = 50,939.10

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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.