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Finding the Fourth Proportional to 22,262.40, 33,296.40 and 18,763.20

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Solution

The fourth proportional to 22,262.40, 33,296.40 and 18,763.20 is: 28,062.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,262.40 : 33,296.40 = 18,763.20 : x
  2. Step 2: Convert to fraction form
    22,262.40/33,296.40 = 18,763.20/x
  3. Step 3: Cross multiply
    22,262.40x = 33,296.40 × 18,763.20
  4. Step 4: Simplify right side
    22,262.40x = 624,747,012.48
  5. Step 5: Solve for x
    x = 624,747,012.48/22,262.40
  6. Step 6: Final answer
    x = 28,062.88

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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.