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Finding the Fourth Proportional to 65,991.67, 98,986.46 and 16,071.68

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Solution

The fourth proportional to 65,991.67, 98,986.46 and 16,071.68 is: 24,107.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,991.67 : 98,986.46 = 16,071.68 : x
  2. Step 2: Convert to fraction form
    65,991.67/98,986.46 = 16,071.68/x
  3. Step 3: Cross multiply
    65,991.67x = 98,986.46 × 16,071.68
  4. Step 4: Simplify right side
    65,991.67x = 1,590,878,876.56
  5. Step 5: Solve for x
    x = 1,590,878,876.56/65,991.67
  6. Step 6: Final answer
    x = 24,107.27

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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.