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Finding the Fourth Proportional to 71,411.67, 107,043.21 and 23,991.57

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Solution

The fourth proportional to 71,411.67, 107,043.21 and 23,991.57 is: 35,962.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,411.67 : 107,043.21 = 23,991.57 : x
  2. Step 2: Convert to fraction form
    71,411.67/107,043.21 = 23,991.57/x
  3. Step 3: Cross multiply
    71,411.67x = 107,043.21 × 23,991.57
  4. Step 4: Simplify right side
    71,411.67x = 2,568,134,665.74
  5. Step 5: Solve for x
    x = 2,568,134,665.74/71,411.67
  6. Step 6: Final answer
    x = 35,962.39

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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.