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Finding the Fourth Proportional to 44,679.85, 66,917.67 and 21,322.69

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Solution

The fourth proportional to 44,679.85, 66,917.67 and 21,322.69 is: 31,935.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,679.85 : 66,917.67 = 21,322.69 : x
  2. Step 2: Convert to fraction form
    44,679.85/66,917.67 = 21,322.69/x
  3. Step 3: Cross multiply
    44,679.85x = 66,917.67 × 21,322.69
  4. Step 4: Simplify right side
    44,679.85x = 1,426,864,732.93
  5. Step 5: Solve for x
    x = 1,426,864,732.93/44,679.85
  6. Step 6: Final answer
    x = 31,935.31

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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.