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Finding the Fourth Proportional to 18,043.72, 27,052.86 and 6,941.08

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Solution

The fourth proportional to 18,043.72, 27,052.86 and 6,941.08 is: 10,406.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,043.72 : 27,052.86 = 6,941.08 : x
  2. Step 2: Convert to fraction form
    18,043.72/27,052.86 = 6,941.08/x
  3. Step 3: Cross multiply
    18,043.72x = 27,052.86 × 6,941.08
  4. Step 4: Simplify right side
    18,043.72x = 187,776,065.49
  5. Step 5: Solve for x
    x = 187,776,065.49/18,043.72
  6. Step 6: Final answer
    x = 10,406.73

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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.