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Finding the Fourth Proportional to 22,574.40, 33,765.60 and 20,251.20

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Solution

The fourth proportional to 22,574.40, 33,765.60 and 20,251.20 is: 30,290.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,574.40 : 33,765.60 = 20,251.20 : x
  2. Step 2: Convert to fraction form
    22,574.40/33,765.60 = 20,251.20/x
  3. Step 3: Cross multiply
    22,574.40x = 33,765.60 × 20,251.20
  4. Step 4: Simplify right side
    22,574.40x = 683,793,918.72
  5. Step 5: Solve for x
    x = 683,793,918.72/22,574.40
  6. Step 6: Final answer
    x = 30,290.68

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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.