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Finding the Fourth Proportional to 22,125.60, 33,226.80 and 11,757.60

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Solution

The fourth proportional to 22,125.60, 33,226.80 and 11,757.60 is: 17,656.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,125.60 : 33,226.80 = 11,757.60 : x
  2. Step 2: Convert to fraction form
    22,125.60/33,226.80 = 11,757.60/x
  3. Step 3: Cross multiply
    22,125.60x = 33,226.80 × 11,757.60
  4. Step 4: Simplify right side
    22,125.60x = 390,667,423.68
  5. Step 5: Solve for x
    x = 390,667,423.68/22,125.60
  6. Step 6: Final answer
    x = 17,656.81

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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.