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Finding the Fourth Proportional to 22,105.60, 33,082.80 and 13,346.80

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Solution

The fourth proportional to 22,105.60, 33,082.80 and 13,346.80 is: 19,974.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,105.60 : 33,082.80 = 13,346.80 : x
  2. Step 2: Convert to fraction form
    22,105.60/33,082.80 = 13,346.80/x
  3. Step 3: Cross multiply
    22,105.60x = 33,082.80 × 13,346.80
  4. Step 4: Simplify right side
    22,105.60x = 441,549,515.04
  5. Step 5: Solve for x
    x = 441,549,515.04/22,105.60
  6. Step 6: Final answer
    x = 19,974.55

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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.