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Finding the Fourth Proportional to 18,124.24, 27,141.24 and 11,530.96

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Solution

The fourth proportional to 18,124.24, 27,141.24 and 11,530.96 is: 17,267.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,124.24 : 27,141.24 = 11,530.96 : x
  2. Step 2: Convert to fraction form
    18,124.24/27,141.24 = 11,530.96/x
  3. Step 3: Cross multiply
    18,124.24x = 27,141.24 × 11,530.96
  4. Step 4: Simplify right side
    18,124.24x = 312,964,552.79
  5. Step 5: Solve for x
    x = 312,964,552.79/18,124.24
  6. Step 6: Final answer
    x = 17,267.73

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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.