Home / 65,902.20-98,859.91-18,517.40

Finding the Fourth Proportional to 65,902.20, 98,859.91 and 18,517.40

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Solution

The fourth proportional to 65,902.20, 98,859.91 and 18,517.40 is: 27,777.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,902.20 : 98,859.91 = 18,517.40 : x
  2. Step 2: Convert to fraction form
    65,902.20/98,859.91 = 18,517.40/x
  3. Step 3: Cross multiply
    65,902.20x = 98,859.91 × 18,517.40
  4. Step 4: Simplify right side
    65,902.20x = 1,830,628,497.43
  5. Step 5: Solve for x
    x = 1,830,628,497.43/65,902.20
  6. Step 6: Final answer
    x = 27,777.96

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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.