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Finding the Fourth Proportional to 43,544.48, 65,310.58 and 13,958.48

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Solution

The fourth proportional to 43,544.48, 65,310.58 and 13,958.48 is: 20,935.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,544.48 : 65,310.58 = 13,958.48 : x
  2. Step 2: Convert to fraction form
    43,544.48/65,310.58 = 13,958.48/x
  3. Step 3: Cross multiply
    43,544.48x = 65,310.58 × 13,958.48
  4. Step 4: Simplify right side
    43,544.48x = 911,636,424.72
  5. Step 5: Solve for x
    x = 911,636,424.72/43,544.48
  6. Step 6: Final answer
    x = 20,935.75

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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.