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Finding the Fourth Proportional to 62,486.64, 93,729.96 and 27,426.60

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Solution

The fourth proportional to 62,486.64, 93,729.96 and 27,426.60 is: 41,139.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,486.64 : 93,729.96 = 27,426.60 : x
  2. Step 2: Convert to fraction form
    62,486.64/93,729.96 = 27,426.60/x
  3. Step 3: Cross multiply
    62,486.64x = 93,729.96 × 27,426.60
  4. Step 4: Simplify right side
    62,486.64x = 2,570,694,120.94
  5. Step 5: Solve for x
    x = 2,570,694,120.94/62,486.64
  6. Step 6: Final answer
    x = 41,139.90

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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.