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Finding the Fourth Proportional to 40,571.40, 60,828.30 and 15,601.80

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Solution

The fourth proportional to 40,571.40, 60,828.30 and 15,601.80 is: 23,391.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,571.40 : 60,828.30 = 15,601.80 : x
  2. Step 2: Convert to fraction form
    40,571.40/60,828.30 = 15,601.80/x
  3. Step 3: Cross multiply
    40,571.40x = 60,828.30 × 15,601.80
  4. Step 4: Simplify right side
    40,571.40x = 949,030,970.94
  5. Step 5: Solve for x
    x = 949,030,970.94/40,571.40
  6. Step 6: Final answer
    x = 23,391.62

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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.