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Finding the Fourth Proportional to 48,751.69, 73,127.53 and 11,815.69

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Solution

The fourth proportional to 48,751.69, 73,127.53 and 11,815.69 is: 17,723.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,751.69 : 73,127.53 = 11,815.69 : x
  2. Step 2: Convert to fraction form
    48,751.69/73,127.53 = 11,815.69/x
  3. Step 3: Cross multiply
    48,751.69x = 73,127.53 × 11,815.69
  4. Step 4: Simplify right side
    48,751.69x = 864,052,224.95
  5. Step 5: Solve for x
    x = 864,052,224.95/48,751.69
  6. Step 6: Final answer
    x = 17,723.53

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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.