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Finding the Fourth Proportional to 18,407.10, 27,609.99 and 5,927.97

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Solution

The fourth proportional to 18,407.10, 27,609.99 and 5,927.97 is: 8,891.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,407.10 : 27,609.99 = 5,927.97 : x
  2. Step 2: Convert to fraction form
    18,407.10/27,609.99 = 5,927.97/x
  3. Step 3: Cross multiply
    18,407.10x = 27,609.99 × 5,927.97
  4. Step 4: Simplify right side
    18,407.10x = 163,671,054.37
  5. Step 5: Solve for x
    x = 163,671,054.37/18,407.10
  6. Step 6: Final answer
    x = 8,891.74

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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.