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Finding the Fourth Proportional to 69,111.67, 103,662.64 and 26,983.84

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Solution

The fourth proportional to 69,111.67, 103,662.64 and 26,983.84 is: 40,473.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,111.67 : 103,662.64 = 26,983.84 : x
  2. Step 2: Convert to fraction form
    69,111.67/103,662.64 = 26,983.84/x
  3. Step 3: Cross multiply
    69,111.67x = 103,662.64 × 26,983.84
  4. Step 4: Simplify right side
    69,111.67x = 2,797,216,091.74
  5. Step 5: Solve for x
    x = 2,797,216,091.74/69,111.67
  6. Step 6: Final answer
    x = 40,473.86

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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.