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Finding the Fourth Proportional to 49,077.78, 67,727.79 and 26,721.78

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Solution

The fourth proportional to 49,077.78, 67,727.79 and 26,721.78 is: 36,876.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,077.78 : 67,727.79 = 26,721.78 : x
  2. Step 2: Convert to fraction form
    49,077.78/67,727.79 = 26,721.78/x
  3. Step 3: Cross multiply
    49,077.78x = 67,727.79 × 26,721.78
  4. Step 4: Simplify right side
    49,077.78x = 1,809,807,104.27
  5. Step 5: Solve for x
    x = 1,809,807,104.27/49,077.78
  6. Step 6: Final answer
    x = 36,876.30

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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.