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Finding the Fourth Proportional to 67,873.21, 101,824.44 and 20,484.33

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Solution

The fourth proportional to 67,873.21, 101,824.44 and 20,484.33 is: 30,730.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,873.21 : 101,824.44 = 20,484.33 : x
  2. Step 2: Convert to fraction form
    67,873.21/101,824.44 = 20,484.33/x
  3. Step 3: Cross multiply
    67,873.21x = 101,824.44 × 20,484.33
  4. Step 4: Simplify right side
    67,873.21x = 2,085,805,328.60
  5. Step 5: Solve for x
    x = 2,085,805,328.60/67,873.21
  6. Step 6: Final answer
    x = 30,730.91

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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.