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Finding the Fourth Proportional to 18,314.51, 27,466.29 and 9,992.97

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Solution

The fourth proportional to 18,314.51, 27,466.29 and 9,992.97 is: 14,986.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,314.51 : 27,466.29 = 9,992.97 : x
  2. Step 2: Convert to fraction form
    18,314.51/27,466.29 = 9,992.97/x
  3. Step 3: Cross multiply
    18,314.51x = 27,466.29 × 9,992.97
  4. Step 4: Simplify right side
    18,314.51x = 274,469,811.98
  5. Step 5: Solve for x
    x = 274,469,811.98/18,314.51
  6. Step 6: Final answer
    x = 14,986.47

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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.