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Finding the Fourth Proportional to 56,906.20, 85,333.70 and 21,834.20

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Solution

The fourth proportional to 56,906.20, 85,333.70 and 21,834.20 is: 32,741.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,906.20 : 85,333.70 = 21,834.20 : x
  2. Step 2: Convert to fraction form
    56,906.20/85,333.70 = 21,834.20/x
  3. Step 3: Cross multiply
    56,906.20x = 85,333.70 × 21,834.20
  4. Step 4: Simplify right side
    56,906.20x = 1,863,193,072.54
  5. Step 5: Solve for x
    x = 1,863,193,072.54/56,906.20
  6. Step 6: Final answer
    x = 32,741.48

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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.