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Finding the Fourth Proportional to 19,995.30, 29,998.08 and 6,847.79

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Solution

The fourth proportional to 19,995.30, 29,998.08 and 6,847.79 is: 10,273.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,995.30 : 29,998.08 = 6,847.79 : x
  2. Step 2: Convert to fraction form
    19,995.30/29,998.08 = 6,847.79/x
  3. Step 3: Cross multiply
    19,995.30x = 29,998.08 × 6,847.79
  4. Step 4: Simplify right side
    19,995.30x = 205,420,402.25
  5. Step 5: Solve for x
    x = 205,420,402.25/19,995.30
  6. Step 6: Final answer
    x = 10,273.43

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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.