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Finding the Fourth Proportional to 18,701.19, 27,942.24 and 18,047.13

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Solution

The fourth proportional to 18,701.19, 27,942.24 and 18,047.13 is: 26,964.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,701.19 : 27,942.24 = 18,047.13 : x
  2. Step 2: Convert to fraction form
    18,701.19/27,942.24 = 18,047.13/x
  3. Step 3: Cross multiply
    18,701.19x = 27,942.24 × 18,047.13
  4. Step 4: Simplify right side
    18,701.19x = 504,277,237.77
  5. Step 5: Solve for x
    x = 504,277,237.77/18,701.19
  6. Step 6: Final answer
    x = 26,964.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.