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Finding the Fourth Proportional to 18,485.82, 27,740.88 and 6,799.14

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Solution

The fourth proportional to 18,485.82, 27,740.88 and 6,799.14 is: 10,203.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,485.82 : 27,740.88 = 6,799.14 : x
  2. Step 2: Convert to fraction form
    18,485.82/27,740.88 = 6,799.14/x
  3. Step 3: Cross multiply
    18,485.82x = 27,740.88 × 6,799.14
  4. Step 4: Simplify right side
    18,485.82x = 188,614,126.84
  5. Step 5: Solve for x
    x = 188,614,126.84/18,485.82
  6. Step 6: Final answer
    x = 10,203.18

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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.