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Finding the Fourth Proportional to 20,354.99, 30,552.21 and 9,832.41

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Solution

The fourth proportional to 20,354.99, 30,552.21 and 9,832.41 is: 14,758.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,354.99 : 30,552.21 = 9,832.41 : x
  2. Step 2: Convert to fraction form
    20,354.99/30,552.21 = 9,832.41/x
  3. Step 3: Cross multiply
    20,354.99x = 30,552.21 × 9,832.41
  4. Step 4: Simplify right side
    20,354.99x = 300,401,855.13
  5. Step 5: Solve for x
    x = 300,401,855.13/20,354.99
  6. Step 6: Final answer
    x = 14,758.15

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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.