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Finding the Fourth Proportional to 18,222.71, 27,337.70 and 5,744.66

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Solution

The fourth proportional to 18,222.71, 27,337.70 and 5,744.66 is: 8,618.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,222.71 : 27,337.70 = 5,744.66 : x
  2. Step 2: Convert to fraction form
    18,222.71/27,337.70 = 5,744.66/x
  3. Step 3: Cross multiply
    18,222.71x = 27,337.70 × 5,744.66
  4. Step 4: Simplify right side
    18,222.71x = 157,045,669.36
  5. Step 5: Solve for x
    x = 157,045,669.36/18,222.71
  6. Step 6: Final answer
    x = 8,618.13

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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.