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Finding the Fourth Proportional to 49,079.78, 67,730.55 and 26,723.78

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Solution

The fourth proportional to 49,079.78, 67,730.55 and 26,723.78 is: 36,879.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,079.78 : 67,730.55 = 26,723.78 : x
  2. Step 2: Convert to fraction form
    49,079.78/67,730.55 = 26,723.78/x
  3. Step 3: Cross multiply
    49,079.78x = 67,730.55 × 26,723.78
  4. Step 4: Simplify right side
    49,079.78x = 1,810,016,317.48
  5. Step 5: Solve for x
    x = 1,810,016,317.48/49,079.78
  6. Step 6: Final answer
    x = 36,879.06

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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.