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Finding the Fourth Proportional to 36,471.48, 50,331.72 and 20,556.48

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Solution

The fourth proportional to 36,471.48, 50,331.72 and 20,556.48 is: 28,368.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,471.48 : 50,331.72 = 20,556.48 : x
  2. Step 2: Convert to fraction form
    36,471.48/50,331.72 = 20,556.48/x
  3. Step 3: Cross multiply
    36,471.48x = 50,331.72 × 20,556.48
  4. Step 4: Simplify right side
    36,471.48x = 1,034,642,995.55
  5. Step 5: Solve for x
    x = 1,034,642,995.55/36,471.48
  6. Step 6: Final answer
    x = 28,368.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.