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Finding the Fourth Proportional to 22,402.80, 33,604.20 and 19,983.60

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Solution

The fourth proportional to 22,402.80, 33,604.20 and 19,983.60 is: 29,975.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,402.80 : 33,604.20 = 19,983.60 : x
  2. Step 2: Convert to fraction form
    22,402.80/33,604.20 = 19,983.60/x
  3. Step 3: Cross multiply
    22,402.80x = 33,604.20 × 19,983.60
  4. Step 4: Simplify right side
    22,402.80x = 671,532,891.12
  5. Step 5: Solve for x
    x = 671,532,891.12/22,402.80
  6. Step 6: Final answer
    x = 29,975.40

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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.