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Finding the Fourth Proportional to 72,395.10, 108,588.60 and 22,474.80

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Solution

The fourth proportional to 72,395.10, 108,588.60 and 22,474.80 is: 33,710.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,395.10 : 108,588.60 = 22,474.80 : x
  2. Step 2: Convert to fraction form
    72,395.10/108,588.60 = 22,474.80/x
  3. Step 3: Cross multiply
    72,395.10x = 108,588.60 × 22,474.80
  4. Step 4: Simplify right side
    72,395.10x = 2,440,507,067.28
  5. Step 5: Solve for x
    x = 2,440,507,067.28/72,395.10
  6. Step 6: Final answer
    x = 33,710.94

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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.