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Finding the Fourth Proportional to 18,488.85, 27,736.05 and 6,801.18

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Solution

The fourth proportional to 18,488.85, 27,736.05 and 6,801.18 is: 10,202.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,488.85 : 27,736.05 = 6,801.18 : x
  2. Step 2: Convert to fraction form
    18,488.85/27,736.05 = 6,801.18/x
  3. Step 3: Cross multiply
    18,488.85x = 27,736.05 × 6,801.18
  4. Step 4: Simplify right side
    18,488.85x = 188,637,868.54
  5. Step 5: Solve for x
    x = 188,637,868.54/18,488.85
  6. Step 6: Final answer
    x = 10,202.79

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1.5x scale

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.