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Finding the Fourth Proportional to 22,402.99, 33,610.97 and 6,820.21

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Solution

The fourth proportional to 22,402.99, 33,610.97 and 6,820.21 is: 10,232.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,402.99 : 33,610.97 = 6,820.21 : x
  2. Step 2: Convert to fraction form
    22,402.99/33,610.97 = 6,820.21/x
  3. Step 3: Cross multiply
    22,402.99x = 33,610.97 × 6,820.21
  4. Step 4: Simplify right side
    22,402.99x = 229,233,873.70
  5. Step 5: Solve for x
    x = 229,233,873.70/22,402.99
  6. Step 6: Final answer
    x = 10,232.29

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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.