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Finding the Fourth Proportional to 67,786.95, 101,671.74 and 17,870.97

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Solution

The fourth proportional to 67,786.95, 101,671.74 and 17,870.97 is: 26,804.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,786.95 : 101,671.74 = 17,870.97 : x
  2. Step 2: Convert to fraction form
    67,786.95/101,671.74 = 17,870.97/x
  3. Step 3: Cross multiply
    67,786.95x = 101,671.74 × 17,870.97
  4. Step 4: Simplify right side
    67,786.95x = 1,816,972,615.39
  5. Step 5: Solve for x
    x = 1,816,972,615.39/67,786.95
  6. Step 6: Final answer
    x = 26,804.17

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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.