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Finding the Fourth Proportional to 65,704.53, 98,571.38 and 18,957.41

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Solution

The fourth proportional to 65,704.53, 98,571.38 and 18,957.41 is: 28,440.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,704.53 : 98,571.38 = 18,957.41 : x
  2. Step 2: Convert to fraction form
    65,704.53/98,571.38 = 18,957.41/x
  3. Step 3: Cross multiply
    65,704.53x = 98,571.38 × 18,957.41
  4. Step 4: Simplify right side
    65,704.53x = 1,868,657,477.28
  5. Step 5: Solve for x
    x = 1,868,657,477.28/65,704.53
  6. Step 6: Final answer
    x = 28,440.31

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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.