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Finding the Fourth Proportional to 61,993.20, 92,982.60 and 17,626.80

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Solution

The fourth proportional to 61,993.20, 92,982.60 and 17,626.80 is: 26,438.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,993.20 : 92,982.60 = 17,626.80 : x
  2. Step 2: Convert to fraction form
    61,993.20/92,982.60 = 17,626.80/x
  3. Step 3: Cross multiply
    61,993.20x = 92,982.60 × 17,626.80
  4. Step 4: Simplify right side
    61,993.20x = 1,638,985,693.68
  5. Step 5: Solve for x
    x = 1,638,985,693.68/61,993.20
  6. Step 6: Final answer
    x = 26,438.15

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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.