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Finding the Fourth Proportional to 19,995.99, 29,973.11 and 8,144.66

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Solution

The fourth proportional to 19,995.99, 29,973.11 and 8,144.66 is: 12,208.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,995.99 : 29,973.11 = 8,144.66 : x
  2. Step 2: Convert to fraction form
    19,995.99/29,973.11 = 8,144.66/x
  3. Step 3: Cross multiply
    19,995.99x = 29,973.11 × 8,144.66
  4. Step 4: Simplify right side
    19,995.99x = 244,120,599.50
  5. Step 5: Solve for x
    x = 244,120,599.50/19,995.99
  6. Step 6: Final answer
    x = 12,208.48

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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.