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Finding the Fourth Proportional to 51,103.26, 70,524.82 and 28,443.70

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Solution

The fourth proportional to 51,103.26, 70,524.82 and 28,443.70 is: 39,253.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,103.26 : 70,524.82 = 28,443.70 : x
  2. Step 2: Convert to fraction form
    51,103.26/70,524.82 = 28,443.70/x
  3. Step 3: Cross multiply
    51,103.26x = 70,524.82 × 28,443.70
  4. Step 4: Simplify right side
    51,103.26x = 2,005,986,575.21
  5. Step 5: Solve for x
    x = 2,005,986,575.21/51,103.26
  6. Step 6: Final answer
    x = 39,253.59

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.