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Finding the Fourth Proportional to 60,859, 91,300.02 and 28,027

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Solution

The fourth proportional to 60,859, 91,300.02 and 28,027 is: 42,045.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,859 : 91,300.02 = 28,027 : x
  2. Step 2: Convert to fraction form
    60,859/91,300.02 = 28,027/x
  3. Step 3: Cross multiply
    60,859x = 91,300.02 × 28,027
  4. Step 4: Simplify right side
    60,859x = 2,558,865,660.54
  5. Step 5: Solve for x
    x = 2,558,865,660.54/60,859
  6. Step 6: Final answer
    x = 42,045.81

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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.