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Finding the Fourth Proportional to 18,257.99, 27,384.55 and 11,614.97

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Solution

The fourth proportional to 18,257.99, 27,384.55 and 11,614.97 is: 17,420.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,257.99 : 27,384.55 = 11,614.97 : x
  2. Step 2: Convert to fraction form
    18,257.99/27,384.55 = 11,614.97/x
  3. Step 3: Cross multiply
    18,257.99x = 27,384.55 × 11,614.97
  4. Step 4: Simplify right side
    18,257.99x = 318,070,766.14
  5. Step 5: Solve for x
    x = 318,070,766.14/18,257.99
  6. Step 6: Final answer
    x = 17,420.91

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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.