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Finding the Fourth Proportional to 18,504.34, 27,761.06 and 5,358.04

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Solution

The fourth proportional to 18,504.34, 27,761.06 and 5,358.04 is: 8,038.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,504.34 : 27,761.06 = 5,358.04 : x
  2. Step 2: Convert to fraction form
    18,504.34/27,761.06 = 5,358.04/x
  3. Step 3: Cross multiply
    18,504.34x = 27,761.06 × 5,358.04
  4. Step 4: Simplify right side
    18,504.34x = 148,744,869.92
  5. Step 5: Solve for x
    x = 148,744,869.92/18,504.34
  6. Step 6: Final answer
    x = 8,038.38

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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.