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Finding the Fourth Proportional to 36,537.91, 50,419.93 and 20,620.19

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Solution

The fourth proportional to 36,537.91, 50,419.93 and 20,620.19 is: 28,454.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,537.91 : 50,419.93 = 20,620.19 : x
  2. Step 2: Convert to fraction form
    36,537.91/50,419.93 = 20,620.19/x
  3. Step 3: Cross multiply
    36,537.91x = 50,419.93 × 20,620.19
  4. Step 4: Simplify right side
    36,537.91x = 1,039,668,484.84
  5. Step 5: Solve for x
    x = 1,039,668,484.84/36,537.91
  6. Step 6: Final answer
    x = 28,454.52

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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.