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Finding the Fourth Proportional to 65,844.72, 98,770.28 and 21,471.41

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Solution

The fourth proportional to 65,844.72, 98,770.28 and 21,471.41 is: 32,208.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,844.72 : 98,770.28 = 21,471.41 : x
  2. Step 2: Convert to fraction form
    65,844.72/98,770.28 = 21,471.41/x
  3. Step 3: Cross multiply
    65,844.72x = 98,770.28 × 21,471.41
  4. Step 4: Simplify right side
    65,844.72x = 2,120,737,177.69
  5. Step 5: Solve for x
    x = 2,120,737,177.69/65,844.72
  6. Step 6: Final answer
    x = 32,208.16

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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.