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Finding the Fourth Proportional to 18,488.64, 27,730.20 and 6,799.14

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Solution

The fourth proportional to 18,488.64, 27,730.20 and 6,799.14 is: 10,197.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,488.64 : 27,730.20 = 6,799.14 : x
  2. Step 2: Convert to fraction form
    18,488.64/27,730.20 = 6,799.14/x
  3. Step 3: Cross multiply
    18,488.64x = 27,730.20 × 6,799.14
  4. Step 4: Simplify right side
    18,488.64x = 188,541,512.03
  5. Step 5: Solve for x
    x = 188,541,512.03/18,488.64
  6. Step 6: Final answer
    x = 10,197.70

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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.