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Finding the Fourth Proportional to 18,562.10, 27,866.92 and 15,946.34

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Solution

The fourth proportional to 18,562.10, 27,866.92 and 15,946.34 is: 23,939.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,562.10 : 27,866.92 = 15,946.34 : x
  2. Step 2: Convert to fraction form
    18,562.10/27,866.92 = 15,946.34/x
  3. Step 3: Cross multiply
    18,562.10x = 27,866.92 × 15,946.34
  4. Step 4: Simplify right side
    18,562.10x = 444,375,381.07
  5. Step 5: Solve for x
    x = 444,375,381.07/18,562.10
  6. Step 6: Final answer
    x = 23,939.93

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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.