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Finding the Fourth Proportional to 37,576.71, 51,855.89 and 20,809.71

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Solution

The fourth proportional to 37,576.71, 51,855.89 and 20,809.71 is: 28,717.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,576.71 : 51,855.89 = 20,809.71 : x
  2. Step 2: Convert to fraction form
    37,576.71/51,855.89 = 20,809.71/x
  3. Step 3: Cross multiply
    37,576.71x = 51,855.89 × 20,809.71
  4. Step 4: Simplify right side
    37,576.71x = 1,079,105,928.64
  5. Step 5: Solve for x
    x = 1,079,105,928.64/37,576.71
  6. Step 6: Final answer
    x = 28,717.41

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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.