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Finding the Fourth Proportional to 41,993.88, 62,990.90 and 39,427.80

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Solution

The fourth proportional to 41,993.88, 62,990.90 and 39,427.80 is: 59,141.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,993.88 : 62,990.90 = 39,427.80 : x
  2. Step 2: Convert to fraction form
    41,993.88/62,990.90 = 39,427.80/x
  3. Step 3: Cross multiply
    41,993.88x = 62,990.90 × 39,427.80
  4. Step 4: Simplify right side
    41,993.88x = 2,483,592,607.02
  5. Step 5: Solve for x
    x = 2,483,592,607.02/41,993.88
  6. Step 6: Final answer
    x = 59,141.78

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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.