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Finding the Fourth Proportional to 65,504.68, 98,174.78 and 28,020.66

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Solution

The fourth proportional to 65,504.68, 98,174.78 and 28,020.66 is: 41,995.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,504.68 : 98,174.78 = 28,020.66 : x
  2. Step 2: Convert to fraction form
    65,504.68/98,174.78 = 28,020.66/x
  3. Step 3: Cross multiply
    65,504.68x = 98,174.78 × 28,020.66
  4. Step 4: Simplify right side
    65,504.68x = 2,750,922,130.95
  5. Step 5: Solve for x
    x = 2,750,922,130.95/65,504.68
  6. Step 6: Final answer
    x = 41,995.81

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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.