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Finding the Fourth Proportional to 68,049.93, 93,919.12 and 48,992.78

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Solution

The fourth proportional to 68,049.93, 93,919.12 and 48,992.78 is: 67,617.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,049.93 : 93,919.12 = 48,992.78 : x
  2. Step 2: Convert to fraction form
    68,049.93/93,919.12 = 48,992.78/x
  3. Step 3: Cross multiply
    68,049.93x = 93,919.12 × 48,992.78
  4. Step 4: Simplify right side
    68,049.93x = 4,601,358,896.27
  5. Step 5: Solve for x
    x = 4,601,358,896.27/68,049.93
  6. Step 6: Final answer
    x = 67,617.39

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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.