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Finding the Fourth Proportional to 67,874.61, 101,708.01 and 28,410.24

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Solution

The fourth proportional to 67,874.61, 101,708.01 and 28,410.24 is: 42,571.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,874.61 : 101,708.01 = 28,410.24 : x
  2. Step 2: Convert to fraction form
    67,874.61/101,708.01 = 28,410.24/x
  3. Step 3: Cross multiply
    67,874.61x = 101,708.01 × 28,410.24
  4. Step 4: Simplify right side
    67,874.61x = 2,889,548,974.02
  5. Step 5: Solve for x
    x = 2,889,548,974.02/67,874.61
  6. Step 6: Final answer
    x = 42,571.87

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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.