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Finding the Fourth Proportional to 72,633.57, 108,960.75 and 35,162.85

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Solution

The fourth proportional to 72,633.57, 108,960.75 and 35,162.85 is: 52,749.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,633.57 : 108,960.75 = 35,162.85 : x
  2. Step 2: Convert to fraction form
    72,633.57/108,960.75 = 35,162.85/x
  3. Step 3: Cross multiply
    72,633.57x = 108,960.75 × 35,162.85
  4. Step 4: Simplify right side
    72,633.57x = 3,831,370,508.14
  5. Step 5: Solve for x
    x = 3,831,370,508.14/72,633.57
  6. Step 6: Final answer
    x = 52,749.31

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1.5x scale

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.