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Finding the Fourth Proportional to 18,368.73, 27,541.92 and 7,832.85

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Solution

The fourth proportional to 18,368.73, 27,541.92 and 7,832.85 is: 11,744.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,368.73 : 27,541.92 = 7,832.85 : x
  2. Step 2: Convert to fraction form
    18,368.73/27,541.92 = 7,832.85/x
  3. Step 3: Cross multiply
    18,368.73x = 27,541.92 × 7,832.85
  4. Step 4: Simplify right side
    18,368.73x = 215,731,728.07
  5. Step 5: Solve for x
    x = 215,731,728.07/18,368.73
  6. Step 6: Final answer
    x = 11,744.51

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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.