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Finding the Fourth Proportional to 63,640.32, 87,826.32 and 35,348.64

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Solution

The fourth proportional to 63,640.32, 87,826.32 and 35,348.64 is: 48,782.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,640.32 : 87,826.32 = 35,348.64 : x
  2. Step 2: Convert to fraction form
    63,640.32/87,826.32 = 35,348.64/x
  3. Step 3: Cross multiply
    63,640.32x = 87,826.32 × 35,348.64
  4. Step 4: Simplify right side
    63,640.32x = 3,104,540,968.20
  5. Step 5: Solve for x
    x = 3,104,540,968.20/63,640.32
  6. Step 6: Final answer
    x = 48,782.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.