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Finding the Fourth Proportional to 55,812.30, 83,720.88 and 27,745.80

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Solution

The fourth proportional to 55,812.30, 83,720.88 and 27,745.80 is: 41,619.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,812.30 : 83,720.88 = 27,745.80 : x
  2. Step 2: Convert to fraction form
    55,812.30/83,720.88 = 27,745.80/x
  3. Step 3: Cross multiply
    55,812.30x = 83,720.88 × 27,745.80
  4. Step 4: Simplify right side
    55,812.30x = 2,322,902,792.30
  5. Step 5: Solve for x
    x = 2,322,902,792.30/55,812.30
  6. Step 6: Final answer
    x = 41,619.91

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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.