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Finding the Fourth Proportional to 36,335.40, 50,143.50 and 21,996.60

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Solution

The fourth proportional to 36,335.40, 50,143.50 and 21,996.60 is: 30,355.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,335.40 : 50,143.50 = 21,996.60 : x
  2. Step 2: Convert to fraction form
    36,335.40/50,143.50 = 21,996.60/x
  3. Step 3: Cross multiply
    36,335.40x = 50,143.50 × 21,996.60
  4. Step 4: Simplify right side
    36,335.40x = 1,102,986,512.10
  5. Step 5: Solve for x
    x = 1,102,986,512.10/36,335.40
  6. Step 6: Final answer
    x = 30,355.70

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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.