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Finding the Fourth Proportional to 67,451.79, 101,128.44 and 27,954.57

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Solution

The fourth proportional to 67,451.79, 101,128.44 and 27,954.57 is: 41,911.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,451.79 : 101,128.44 = 27,954.57 : x
  2. Step 2: Convert to fraction form
    67,451.79/101,128.44 = 27,954.57/x
  3. Step 3: Cross multiply
    67,451.79x = 101,128.44 × 27,954.57
  4. Step 4: Simplify right side
    67,451.79x = 2,827,002,054.97
  5. Step 5: Solve for x
    x = 2,827,002,054.97/67,451.79
  6. Step 6: Final answer
    x = 41,911.45

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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.