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Finding the Fourth Proportional to 18,498.32, 27,751.32 and 6,186

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Solution

The fourth proportional to 18,498.32, 27,751.32 and 6,186 is: 9,280.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,498.32 : 27,751.32 = 6,186 : x
  2. Step 2: Convert to fraction form
    18,498.32/27,751.32 = 6,186/x
  3. Step 3: Cross multiply
    18,498.32x = 27,751.32 × 6,186
  4. Step 4: Simplify right side
    18,498.32x = 171,669,665.52
  5. Step 5: Solve for x
    x = 171,669,665.52/18,498.32
  6. Step 6: Final answer
    x = 9,280.28

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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.