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Finding the Fourth Proportional to 17,092.60, 25,638.90 and 9,219.40

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Solution

The fourth proportional to 17,092.60, 25,638.90 and 9,219.40 is: 13,829.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,092.60 : 25,638.90 = 9,219.40 : x
  2. Step 2: Convert to fraction form
    17,092.60/25,638.90 = 9,219.40/x
  3. Step 3: Cross multiply
    17,092.60x = 25,638.90 × 9,219.40
  4. Step 4: Simplify right side
    17,092.60x = 236,375,274.66
  5. Step 5: Solve for x
    x = 236,375,274.66/17,092.60
  6. Step 6: Final answer
    x = 13,829.10

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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.