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Finding the Fourth Proportional to 13,999.19, 20,998.05 and 5,233.41

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Solution

The fourth proportional to 13,999.19, 20,998.05 and 5,233.41 is: 7,849.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,999.19 : 20,998.05 = 5,233.41 : x
  2. Step 2: Convert to fraction form
    13,999.19/20,998.05 = 5,233.41/x
  3. Step 3: Cross multiply
    13,999.19x = 20,998.05 × 5,233.41
  4. Step 4: Simplify right side
    13,999.19x = 109,891,404.85
  5. Step 5: Solve for x
    x = 109,891,404.85/13,999.19
  6. Step 6: Final answer
    x = 7,849.84

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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.