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Finding the Fourth Proportional to 18,373.43, 27,551.00 and 7,841.81

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Solution

The fourth proportional to 18,373.43, 27,551.00 and 7,841.81 is: 11,758.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,373.43 : 27,551.00 = 7,841.81 : x
  2. Step 2: Convert to fraction form
    18,373.43/27,551.00 = 7,841.81/x
  3. Step 3: Cross multiply
    18,373.43x = 27,551.00 × 7,841.81
  4. Step 4: Simplify right side
    18,373.43x = 216,049,795.79
  5. Step 5: Solve for x
    x = 216,049,795.79/18,373.43
  6. Step 6: Final answer
    x = 11,758.82

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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.