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Finding the Fourth Proportional to 35,989.22, 53,983.83 and 18,447.86

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Solution

The fourth proportional to 35,989.22, 53,983.83 and 18,447.86 is: 27,671.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,989.22 : 53,983.83 = 18,447.86 : x
  2. Step 2: Convert to fraction form
    35,989.22/53,983.83 = 18,447.86/x
  3. Step 3: Cross multiply
    35,989.22x = 53,983.83 × 18,447.86
  4. Step 4: Simplify right side
    35,989.22x = 995,886,138.10
  5. Step 5: Solve for x
    x = 995,886,138.10/35,989.22
  6. Step 6: Final answer
    x = 27,671.79

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.