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Finding the Fourth Proportional to 19,959.03, 29,945.39 and 6,820.62

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Solution

The fourth proportional to 19,959.03, 29,945.39 and 6,820.62 is: 10,233.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,959.03 : 29,945.39 = 6,820.62 : x
  2. Step 2: Convert to fraction form
    19,959.03/29,945.39 = 6,820.62/x
  3. Step 3: Cross multiply
    19,959.03x = 29,945.39 × 6,820.62
  4. Step 4: Simplify right side
    19,959.03x = 204,246,091.84
  5. Step 5: Solve for x
    x = 204,246,091.84/19,959.03
  6. Step 6: Final answer
    x = 10,233.27

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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.