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Finding the Fourth Proportional to 36,536.01, 50,421.10 and 20,620.11

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Solution

The fourth proportional to 36,536.01, 50,421.10 and 20,620.11 is: 28,456.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,536.01 : 50,421.10 = 20,620.11 : x
  2. Step 2: Convert to fraction form
    36,536.01/50,421.10 = 20,620.11/x
  3. Step 3: Cross multiply
    36,536.01x = 50,421.10 × 20,620.11
  4. Step 4: Simplify right side
    36,536.01x = 1,039,688,765.85
  5. Step 5: Solve for x
    x = 1,039,688,765.85/36,536.01
  6. Step 6: Final answer
    x = 28,456.55

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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.