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Finding the Fourth Proportional to 43,975.42, 65,956.75 and 14,394.42

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Solution

The fourth proportional to 43,975.42, 65,956.75 and 14,394.42 is: 21,589.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,975.42 : 65,956.75 = 14,394.42 : x
  2. Step 2: Convert to fraction form
    43,975.42/65,956.75 = 14,394.42/x
  3. Step 3: Cross multiply
    43,975.42x = 65,956.75 × 14,394.42
  4. Step 4: Simplify right side
    43,975.42x = 949,409,125.35
  5. Step 5: Solve for x
    x = 949,409,125.35/43,975.42
  6. Step 6: Final answer
    x = 21,589.54

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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.