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Finding the Fourth Proportional to 19,998.03, 29,996.64 and 5,206.62

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Solution

The fourth proportional to 19,998.03, 29,996.64 and 5,206.62 is: 7,809.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,998.03 : 29,996.64 = 5,206.62 : x
  2. Step 2: Convert to fraction form
    19,998.03/29,996.64 = 5,206.62/x
  3. Step 3: Cross multiply
    19,998.03x = 29,996.64 × 5,206.62
  4. Step 4: Simplify right side
    19,998.03x = 156,181,105.76
  5. Step 5: Solve for x
    x = 156,181,105.76/19,998.03
  6. Step 6: Final answer
    x = 7,809.82

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1.5x scale

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.