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Finding the Fourth Proportional to 18,245.97, 27,368.96 and 4,394.97

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Solution

The fourth proportional to 18,245.97, 27,368.96 and 4,394.97 is: 6,592.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,245.97 : 27,368.96 = 4,394.97 : x
  2. Step 2: Convert to fraction form
    18,245.97/27,368.96 = 4,394.97/x
  3. Step 3: Cross multiply
    18,245.97x = 27,368.96 × 4,394.97
  4. Step 4: Simplify right side
    18,245.97x = 120,285,736.16
  5. Step 5: Solve for x
    x = 120,285,736.16/18,245.97
  6. Step 6: Final answer
    x = 6,592.46

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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.