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Finding the Fourth Proportional to 68,774.94, 94,906.08 and 38,563.56

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Solution

The fourth proportional to 68,774.94, 94,906.08 and 38,563.56 is: 53,215.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,774.94 : 94,906.08 = 38,563.56 : x
  2. Step 2: Convert to fraction form
    68,774.94/94,906.08 = 38,563.56/x
  3. Step 3: Cross multiply
    68,774.94x = 94,906.08 × 38,563.56
  4. Step 4: Simplify right side
    68,774.94x = 3,659,916,310.44
  5. Step 5: Solve for x
    x = 3,659,916,310.44/68,774.94
  6. Step 6: Final answer
    x = 53,215.84

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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.