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Finding the Fourth Proportional to 67,879.43, 101,858.84 and 28,433.24

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Solution

The fourth proportional to 67,879.43, 101,858.84 and 28,433.24 is: 42,666.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,879.43 : 101,858.84 = 28,433.24 : x
  2. Step 2: Convert to fraction form
    67,879.43/101,858.84 = 28,433.24/x
  3. Step 3: Cross multiply
    67,879.43x = 101,858.84 × 28,433.24
  4. Step 4: Simplify right side
    67,879.43x = 2,896,176,192.38
  5. Step 5: Solve for x
    x = 2,896,176,192.38/67,879.43
  6. Step 6: Final answer
    x = 42,666.48

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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.