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Finding the Fourth Proportional to 18,704.94, 25,815.10 and 10,747.14

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Solution

The fourth proportional to 18,704.94, 25,815.10 and 10,747.14 is: 14,832.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,704.94 : 25,815.10 = 10,747.14 : x
  2. Step 2: Convert to fraction form
    18,704.94/25,815.10 = 10,747.14/x
  3. Step 3: Cross multiply
    18,704.94x = 25,815.10 × 10,747.14
  4. Step 4: Simplify right side
    18,704.94x = 277,438,493.81
  5. Step 5: Solve for x
    x = 277,438,493.81/18,704.94
  6. Step 6: Final answer
    x = 14,832.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.