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Finding the Fourth Proportional to 68,589.80, 94,648.52 and 38,372.75

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Solution

The fourth proportional to 68,589.80, 94,648.52 and 38,372.75 is: 52,951.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,589.80 : 94,648.52 = 38,372.75 : x
  2. Step 2: Convert to fraction form
    68,589.80/94,648.52 = 38,372.75/x
  3. Step 3: Cross multiply
    68,589.80x = 94,648.52 × 38,372.75
  4. Step 4: Simplify right side
    68,589.80x = 3,631,923,618.52
  5. Step 5: Solve for x
    x = 3,631,923,618.52/68,589.80
  6. Step 6: Final answer
    x = 52,951.37

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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.