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Finding the Fourth Proportional to 68,863.52, 95,033.55 and 38,650.72

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Solution

The fourth proportional to 68,863.52, 95,033.55 and 38,650.72 is: 53,339.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,863.52 : 95,033.55 = 38,650.72 : x
  2. Step 2: Convert to fraction form
    68,863.52/95,033.55 = 38,650.72/x
  3. Step 3: Cross multiply
    68,863.52x = 95,033.55 × 38,650.72
  4. Step 4: Simplify right side
    68,863.52x = 3,673,115,131.66
  5. Step 5: Solve for x
    x = 3,673,115,131.66/68,863.52
  6. Step 6: Final answer
    x = 53,339.06

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1.5x scale

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.