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Finding the Fourth Proportional to 68,821.44, 94,980.78 and 38,614.92

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Solution

The fourth proportional to 68,821.44, 94,980.78 and 38,614.92 is: 53,292.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,821.44 : 94,980.78 = 38,614.92 : x
  2. Step 2: Convert to fraction form
    68,821.44/94,980.78 = 38,614.92/x
  3. Step 3: Cross multiply
    68,821.44x = 94,980.78 × 38,614.92
  4. Step 4: Simplify right side
    68,821.44x = 3,667,675,221.24
  5. Step 5: Solve for x
    x = 3,667,675,221.24/68,821.44
  6. Step 6: Final answer
    x = 53,292.63

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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.