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Finding the Fourth Proportional to 65,936.44, 98,920.22 and 21,563.02

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Solution

The fourth proportional to 65,936.44, 98,920.22 and 21,563.02 is: 32,349.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,936.44 : 98,920.22 = 21,563.02 : x
  2. Step 2: Convert to fraction form
    65,936.44/98,920.22 = 21,563.02/x
  3. Step 3: Cross multiply
    65,936.44x = 98,920.22 × 21,563.02
  4. Step 4: Simplify right side
    65,936.44x = 2,133,018,682.26
  5. Step 5: Solve for x
    x = 2,133,018,682.26/65,936.44
  6. Step 6: Final answer
    x = 32,349.62

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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.