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Finding the Fourth Proportional to 36,398.48, 50,229.74 and 20,483.20

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Solution

The fourth proportional to 36,398.48, 50,229.74 and 20,483.20 is: 28,266.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,398.48 : 50,229.74 = 20,483.20 : x
  2. Step 2: Convert to fraction form
    36,398.48/50,229.74 = 20,483.20/x
  3. Step 3: Cross multiply
    36,398.48x = 50,229.74 × 20,483.20
  4. Step 4: Simplify right side
    36,398.48x = 1,028,865,559.22
  5. Step 5: Solve for x
    x = 1,028,865,559.22/36,398.48
  6. Step 6: Final answer
    x = 28,266.72

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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.