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Finding the Fourth Proportional to 47,652.93, 71,481.96 and 12,591.63

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Solution

The fourth proportional to 47,652.93, 71,481.96 and 12,591.63 is: 18,888.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,652.93 : 71,481.96 = 12,591.63 : x
  2. Step 2: Convert to fraction form
    47,652.93/71,481.96 = 12,591.63/x
  3. Step 3: Cross multiply
    47,652.93x = 71,481.96 × 12,591.63
  4. Step 4: Simplify right side
    47,652.93x = 900,074,391.99
  5. Step 5: Solve for x
    x = 900,074,391.99/47,652.93
  6. Step 6: Final answer
    x = 18,888.12

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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.