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Finding the Fourth Proportional to 18,236.46, 27,354.69 and 14,082.54

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Solution

The fourth proportional to 18,236.46, 27,354.69 and 14,082.54 is: 21,123.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,236.46 : 27,354.69 = 14,082.54 : x
  2. Step 2: Convert to fraction form
    18,236.46/27,354.69 = 14,082.54/x
  3. Step 3: Cross multiply
    18,236.46x = 27,354.69 × 14,082.54
  4. Step 4: Simplify right side
    18,236.46x = 385,223,516.11
  5. Step 5: Solve for x
    x = 385,223,516.11/18,236.46
  6. Step 6: Final answer
    x = 21,123.81

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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.