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Finding the Fourth Proportional to 43,460.40, 65,239.20 and 33,643.20

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Solution

The fourth proportional to 43,460.40, 65,239.20 and 33,643.20 is: 50,502.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,460.40 : 65,239.20 = 33,643.20 : x
  2. Step 2: Convert to fraction form
    43,460.40/65,239.20 = 33,643.20/x
  3. Step 3: Cross multiply
    43,460.40x = 65,239.20 × 33,643.20
  4. Step 4: Simplify right side
    43,460.40x = 2,194,855,453.44
  5. Step 5: Solve for x
    x = 2,194,855,453.44/43,460.40
  6. Step 6: Final answer
    x = 50,502.42

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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.