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Finding the Fourth Proportional to 45,472.83, 68,251.91 and 27,976.83

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Solution

The fourth proportional to 45,472.83, 68,251.91 and 27,976.83 is: 41,991.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,472.83 : 68,251.91 = 27,976.83 : x
  2. Step 2: Convert to fraction form
    45,472.83/68,251.91 = 27,976.83/x
  3. Step 3: Cross multiply
    45,472.83x = 68,251.91 × 27,976.83
  4. Step 4: Simplify right side
    45,472.83x = 1,909,471,943.36
  5. Step 5: Solve for x
    x = 1,909,471,943.36/45,472.83
  6. Step 6: Final answer
    x = 41,991.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.