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Finding the Fourth Proportional to 26,706.68, 36,845.52 and 20,576.40

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Solution

The fourth proportional to 26,706.68, 36,845.52 and 20,576.40 is: 28,387.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,706.68 : 36,845.52 = 20,576.40 : x
  2. Step 2: Convert to fraction form
    26,706.68/36,845.52 = 20,576.40/x
  3. Step 3: Cross multiply
    26,706.68x = 36,845.52 × 20,576.40
  4. Step 4: Simplify right side
    26,706.68x = 758,148,157.73
  5. Step 5: Solve for x
    x = 758,148,157.73/26,706.68
  6. Step 6: Final answer
    x = 28,387.96

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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.