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Finding the Fourth Proportional to 67,993.70, 101,886.62 and 28,529.28

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Solution

The fourth proportional to 67,993.70, 101,886.62 and 28,529.28 is: 42,750.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,993.70 : 101,886.62 = 28,529.28 : x
  2. Step 2: Convert to fraction form
    67,993.70/101,886.62 = 28,529.28/x
  3. Step 3: Cross multiply
    67,993.70x = 101,886.62 × 28,529.28
  4. Step 4: Simplify right side
    67,993.70x = 2,906,751,767.59
  5. Step 5: Solve for x
    x = 2,906,751,767.59/67,993.70
  6. Step 6: Final answer
    x = 42,750.31

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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.