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Finding the Fourth Proportional to 40,992.40, 61,517.40 and 17,635.60

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Solution

The fourth proportional to 40,992.40, 61,517.40 and 17,635.60 is: 26,465.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,992.40 : 61,517.40 = 17,635.60 : x
  2. Step 2: Convert to fraction form
    40,992.40/61,517.40 = 17,635.60/x
  3. Step 3: Cross multiply
    40,992.40x = 61,517.40 × 17,635.60
  4. Step 4: Simplify right side
    40,992.40x = 1,084,896,259.44
  5. Step 5: Solve for x
    x = 1,084,896,259.44/40,992.40
  6. Step 6: Final answer
    x = 26,465.79

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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.