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Finding the Fourth Proportional to 17,654.84, 26,469.43 and 8,290.04

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Solution

The fourth proportional to 17,654.84, 26,469.43 and 8,290.04 is: 12,429.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,654.84 : 26,469.43 = 8,290.04 : x
  2. Step 2: Convert to fraction form
    17,654.84/26,469.43 = 8,290.04/x
  3. Step 3: Cross multiply
    17,654.84x = 26,469.43 × 8,290.04
  4. Step 4: Simplify right side
    17,654.84x = 219,432,480.40
  5. Step 5: Solve for x
    x = 219,432,480.40/17,654.84
  6. Step 6: Final answer
    x = 12,429.03

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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.