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Finding the Fourth Proportional to 18,557.58, 27,834.14 and 5,231.58

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Solution

The fourth proportional to 18,557.58, 27,834.14 and 5,231.58 is: 7,846.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,557.58 : 27,834.14 = 5,231.58 : x
  2. Step 2: Convert to fraction form
    18,557.58/27,834.14 = 5,231.58/x
  3. Step 3: Cross multiply
    18,557.58x = 27,834.14 × 5,231.58
  4. Step 4: Simplify right side
    18,557.58x = 145,616,438.84
  5. Step 5: Solve for x
    x = 145,616,438.84/18,557.58
  6. Step 6: Final answer
    x = 7,846.73

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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.