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Finding the Fourth Proportional to 36,273.76, 54,358.80 and 20,659.12

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Solution

The fourth proportional to 36,273.76, 54,358.80 and 20,659.12 is: 30,959.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,273.76 : 54,358.80 = 20,659.12 : x
  2. Step 2: Convert to fraction form
    36,273.76/54,358.80 = 20,659.12/x
  3. Step 3: Cross multiply
    36,273.76x = 54,358.80 × 20,659.12
  4. Step 4: Simplify right side
    36,273.76x = 1,123,004,972.26
  5. Step 5: Solve for x
    x = 1,123,004,972.26/36,273.76
  6. Step 6: Final answer
    x = 30,959.16

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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.