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Finding the Fourth Proportional to 48,751.56, 73,129.94 and 15,474.20

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Solution

The fourth proportional to 48,751.56, 73,129.94 and 15,474.20 is: 23,212.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,751.56 : 73,129.94 = 15,474.20 : x
  2. Step 2: Convert to fraction form
    48,751.56/73,129.94 = 15,474.20/x
  3. Step 3: Cross multiply
    48,751.56x = 73,129.94 × 15,474.20
  4. Step 4: Simplify right side
    48,751.56x = 1,131,627,317.55
  5. Step 5: Solve for x
    x = 1,131,627,317.55/48,751.56
  6. Step 6: Final answer
    x = 23,212.13

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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.