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Finding the Third Proportional to 66,898.75 and 91,735

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Solution

The third proportional to 66,898.75 and 91,735 is: 125,791.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,898.75 : 91,735 = 91,735 : x
  2. Step 2: Convert to fraction form
    66,898.75/91,735 = 91,735/x
  3. Step 3: Cross multiply
    66,898.75x = 91,735 × 91,735
  4. Step 4: Simplify right side
    66,898.75x = 8,415,310,225
  5. Step 5: Solve for x
    x = 8,415,310,225/66,898.75
  6. Step 6: Final answer
    x = 125,791.74

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.