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Finding the Fourth Proportional to 43,207.88, 64,811.81 and 10,375.88

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Solution

The fourth proportional to 43,207.88, 64,811.81 and 10,375.88 is: 15,563.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,207.88 : 64,811.81 = 10,375.88 : x
  2. Step 2: Convert to fraction form
    43,207.88/64,811.81 = 10,375.88/x
  3. Step 3: Cross multiply
    43,207.88x = 64,811.81 × 10,375.88
  4. Step 4: Simplify right side
    43,207.88x = 672,479,265.02
  5. Step 5: Solve for x
    x = 672,479,265.02/43,207.88
  6. Step 6: Final answer
    x = 15,563.81

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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.