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Finding the Fourth Proportional to 36,660.60, 54,992.70 and 19,164.60

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Solution

The fourth proportional to 36,660.60, 54,992.70 and 19,164.60 is: 28,747.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,660.60 : 54,992.70 = 19,164.60 : x
  2. Step 2: Convert to fraction form
    36,660.60/54,992.70 = 19,164.60/x
  3. Step 3: Cross multiply
    36,660.60x = 54,992.70 × 19,164.60
  4. Step 4: Simplify right side
    36,660.60x = 1,053,913,098.42
  5. Step 5: Solve for x
    x = 1,053,913,098.42/36,660.60
  6. Step 6: Final answer
    x = 28,747.84

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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.