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Finding the Fourth Proportional to 51,959.67, 71,704.68 and 28,086.29

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Solution

The fourth proportional to 51,959.67, 71,704.68 and 28,086.29 is: 38,759.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,959.67 : 71,704.68 = 28,086.29 : x
  2. Step 2: Convert to fraction form
    51,959.67/71,704.68 = 28,086.29/x
  3. Step 3: Cross multiply
    51,959.67x = 71,704.68 × 28,086.29
  4. Step 4: Simplify right side
    51,959.67x = 2,013,918,296.41
  5. Step 5: Solve for x
    x = 2,013,918,296.41/51,959.67
  6. Step 6: Final answer
    x = 38,759.26

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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.