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Finding the Fourth Proportional to 65,846.94, 98,786.13 and 21,473.73

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Solution

The fourth proportional to 65,846.94, 98,786.13 and 21,473.73 is: 32,215.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,846.94 : 98,786.13 = 21,473.73 : x
  2. Step 2: Convert to fraction form
    65,846.94/98,786.13 = 21,473.73/x
  3. Step 3: Cross multiply
    65,846.94x = 98,786.13 × 21,473.73
  4. Step 4: Simplify right side
    65,846.94x = 2,121,306,683.36
  5. Step 5: Solve for x
    x = 2,121,306,683.36/65,846.94
  6. Step 6: Final answer
    x = 32,215.72

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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.