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Finding the Fourth Proportional to 68,850.44, 95,020.89 and 38,643.92

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Solution

The fourth proportional to 68,850.44, 95,020.89 and 38,643.92 is: 53,332.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,850.44 : 95,020.89 = 38,643.92 : x
  2. Step 2: Convert to fraction form
    68,850.44/95,020.89 = 38,643.92/x
  3. Step 3: Cross multiply
    68,850.44x = 95,020.89 × 38,643.92
  4. Step 4: Simplify right side
    68,850.44x = 3,671,979,671.49
  5. Step 5: Solve for x
    x = 3,671,979,671.49/68,850.44
  6. Step 6: Final answer
    x = 53,332.70

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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.