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Finding the Fourth Proportional to 51,791.47, 71,471.84 and 29,435.47

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Solution

The fourth proportional to 51,791.47, 71,471.84 and 29,435.47 is: 40,620.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,791.47 : 71,471.84 = 29,435.47 : x
  2. Step 2: Convert to fraction form
    51,791.47/71,471.84 = 29,435.47/x
  3. Step 3: Cross multiply
    51,791.47x = 71,471.84 × 29,435.47
  4. Step 4: Simplify right side
    51,791.47x = 2,103,806,876.31
  5. Step 5: Solve for x
    x = 2,103,806,876.31/51,791.47
  6. Step 6: Final answer
    x = 40,620.72

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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.