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Finding the Fourth Proportional to 67,786.54, 101,601.12 and 25,639.81

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Solution

The fourth proportional to 67,786.54, 101,601.12 and 25,639.81 is: 38,429.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,786.54 : 101,601.12 = 25,639.81 : x
  2. Step 2: Convert to fraction form
    67,786.54/101,601.12 = 25,639.81/x
  3. Step 3: Cross multiply
    67,786.54x = 101,601.12 × 25,639.81
  4. Step 4: Simplify right side
    67,786.54x = 2,605,033,412.59
  5. Step 5: Solve for x
    x = 2,605,033,412.59/67,786.54
  6. Step 6: Final answer
    x = 38,429.95

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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.