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Finding the Fourth Proportional to 48,751.94, 73,127.91 and 11,815.94

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Solution

The fourth proportional to 48,751.94, 73,127.91 and 11,815.94 is: 17,723.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,751.94 : 73,127.91 = 11,815.94 : x
  2. Step 2: Convert to fraction form
    48,751.94/73,127.91 = 11,815.94/x
  3. Step 3: Cross multiply
    48,751.94x = 73,127.91 × 11,815.94
  4. Step 4: Simplify right side
    48,751.94x = 864,074,996.89
  5. Step 5: Solve for x
    x = 864,074,996.89/48,751.94
  6. Step 6: Final answer
    x = 17,723.91

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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.