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Finding the Fourth Proportional to 18,402.66, 27,604.44 and 6,715.89

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Solution

The fourth proportional to 18,402.66, 27,604.44 and 6,715.89 is: 10,074.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,402.66 : 27,604.44 = 6,715.89 : x
  2. Step 2: Convert to fraction form
    18,402.66/27,604.44 = 6,715.89/x
  3. Step 3: Cross multiply
    18,402.66x = 27,604.44 × 6,715.89
  4. Step 4: Simplify right side
    18,402.66x = 185,388,382.55
  5. Step 5: Solve for x
    x = 185,388,382.55/18,402.66
  6. Step 6: Final answer
    x = 10,074.00

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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.