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Finding the Fourth Proportional to 48,040.80, 71,969.40 and 25,846.80

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Solution

The fourth proportional to 48,040.80, 71,969.40 and 25,846.80 is: 38,720.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,040.80 : 71,969.40 = 25,846.80 : x
  2. Step 2: Convert to fraction form
    48,040.80/71,969.40 = 25,846.80/x
  3. Step 3: Cross multiply
    48,040.80x = 71,969.40 × 25,846.80
  4. Step 4: Simplify right side
    48,040.80x = 1,860,178,687.92
  5. Step 5: Solve for x
    x = 1,860,178,687.92/48,040.80
  6. Step 6: Final answer
    x = 38,720.81

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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.