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Finding the Fourth Proportional to 22,403.28, 33,609.78 and 6,820.50

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Solution

The fourth proportional to 22,403.28, 33,609.78 and 6,820.50 is: 10,232.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,403.28 : 33,609.78 = 6,820.50 : x
  2. Step 2: Convert to fraction form
    22,403.28/33,609.78 = 6,820.50/x
  3. Step 3: Cross multiply
    22,403.28x = 33,609.78 × 6,820.50
  4. Step 4: Simplify right side
    22,403.28x = 229,235,504.49
  5. Step 5: Solve for x
    x = 229,235,504.49/22,403.28
  6. Step 6: Final answer
    x = 10,232.23

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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.