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Finding the Fourth Proportional to 18,314.73, 27,473.46 and 7,783.57

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Solution

The fourth proportional to 18,314.73, 27,473.46 and 7,783.57 is: 11,675.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,314.73 : 27,473.46 = 7,783.57 : x
  2. Step 2: Convert to fraction form
    18,314.73/27,473.46 = 7,783.57/x
  3. Step 3: Cross multiply
    18,314.73x = 27,473.46 × 7,783.57
  4. Step 4: Simplify right side
    18,314.73x = 213,841,599.05
  5. Step 5: Solve for x
    x = 213,841,599.05/18,314.73
  6. Step 6: Final answer
    x = 11,675.94

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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.