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Finding the Fourth Proportional to 18,398.76, 27,602.22 and 6,711.96

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Solution

The fourth proportional to 18,398.76, 27,602.22 and 6,711.96 is: 10,069.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,398.76 : 27,602.22 = 6,711.96 : x
  2. Step 2: Convert to fraction form
    18,398.76/27,602.22 = 6,711.96/x
  3. Step 3: Cross multiply
    18,398.76x = 27,602.22 × 6,711.96
  4. Step 4: Simplify right side
    18,398.76x = 185,264,996.55
  5. Step 5: Solve for x
    x = 185,264,996.55/18,398.76
  6. Step 6: Final answer
    x = 10,069.43

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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.