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Finding the Fourth Proportional to 65,355.26, 98,023.62 and 20,976.27

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Solution

The fourth proportional to 65,355.26, 98,023.62 and 20,976.27 is: 31,461.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,355.26 : 98,023.62 = 20,976.27 : x
  2. Step 2: Convert to fraction form
    65,355.26/98,023.62 = 20,976.27/x
  3. Step 3: Cross multiply
    65,355.26x = 98,023.62 × 20,976.27
  4. Step 4: Simplify right side
    65,355.26x = 2,056,169,919.50
  5. Step 5: Solve for x
    x = 2,056,169,919.50/65,355.26
  6. Step 6: Final answer
    x = 31,461.43

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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.