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Finding the Fourth Proportional to 43,967.61, 65,950.80 and 10,687.57

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Solution

The fourth proportional to 43,967.61, 65,950.80 and 10,687.57 is: 16,031.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,967.61 : 65,950.80 = 10,687.57 : x
  2. Step 2: Convert to fraction form
    43,967.61/65,950.80 = 10,687.57/x
  3. Step 3: Cross multiply
    43,967.61x = 65,950.80 × 10,687.57
  4. Step 4: Simplify right side
    43,967.61x = 704,853,791.56
  5. Step 5: Solve for x
    x = 704,853,791.56/43,967.61
  6. Step 6: Final answer
    x = 16,031.21

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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.