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Finding the Fourth Proportional to 51,193.63, 70,647.92 and 28,531.99

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Solution

The fourth proportional to 51,193.63, 70,647.92 and 28,531.99 is: 39,374.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,193.63 : 70,647.92 = 28,531.99 : x
  2. Step 2: Convert to fraction form
    51,193.63/70,647.92 = 28,531.99/x
  3. Step 3: Cross multiply
    51,193.63x = 70,647.92 × 28,531.99
  4. Step 4: Simplify right side
    51,193.63x = 2,015,725,604.30
  5. Step 5: Solve for x
    x = 2,015,725,604.30/51,193.63
  6. Step 6: Final answer
    x = 39,374.54

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Why These Related Problems?

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