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Finding the Fourth Proportional to 36,370.92, 50,190.12 and 20,457.12

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Solution

The fourth proportional to 36,370.92, 50,190.12 and 20,457.12 is: 28,229.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,370.92 : 50,190.12 = 20,457.12 : x
  2. Step 2: Convert to fraction form
    36,370.92/50,190.12 = 20,457.12/x
  3. Step 3: Cross multiply
    36,370.92x = 50,190.12 × 20,457.12
  4. Step 4: Simplify right side
    36,370.92x = 1,026,745,307.65
  5. Step 5: Solve for x
    x = 1,026,745,307.65/36,370.92
  6. Step 6: Final answer
    x = 28,229.84

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Half scale
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Double scale
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Similar ratio
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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.