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Finding the Fourth Proportional to 43,505.71, 65,270.82 and 16,859.75

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Solution

The fourth proportional to 43,505.71, 65,270.82 and 16,859.75 is: 25,294.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,505.71 : 65,270.82 = 16,859.75 : x
  2. Step 2: Convert to fraction form
    43,505.71/65,270.82 = 16,859.75/x
  3. Step 3: Cross multiply
    43,505.71x = 65,270.82 × 16,859.75
  4. Step 4: Simplify right side
    43,505.71x = 1,100,449,707.50
  5. Step 5: Solve for x
    x = 1,100,449,707.50/43,505.71
  6. Step 6: Final answer
    x = 25,294.37

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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.