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Finding the Fourth Proportional to 18,381.71, 27,566.53 and 5,898.77

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Solution

The fourth proportional to 18,381.71, 27,566.53 and 5,898.77 is: 8,846.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,381.71 : 27,566.53 = 5,898.77 : x
  2. Step 2: Convert to fraction form
    18,381.71/27,566.53 = 5,898.77/x
  3. Step 3: Cross multiply
    18,381.71x = 27,566.53 × 5,898.77
  4. Step 4: Simplify right side
    18,381.71x = 162,608,726.02
  5. Step 5: Solve for x
    x = 162,608,726.02/18,381.71
  6. Step 6: Final answer
    x = 8,846.22

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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.