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Finding the Fourth Proportional to 43,756.25, 65,638.94 and 16,738.54

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Solution

The fourth proportional to 43,756.25, 65,638.94 and 16,738.54 is: 25,109.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,756.25 : 65,638.94 = 16,738.54 : x
  2. Step 2: Convert to fraction form
    43,756.25/65,638.94 = 16,738.54/x
  3. Step 3: Cross multiply
    43,756.25x = 65,638.94 × 16,738.54
  4. Step 4: Simplify right side
    43,756.25x = 1,098,699,898.65
  5. Step 5: Solve for x
    x = 1,098,699,898.65/43,756.25
  6. Step 6: Final answer
    x = 25,109.55

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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.