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Finding the Third Proportional to 66,993.50 and 103,686

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Solution

The third proportional to 66,993.50 and 103,686 is: 160,475.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,993.50 : 103,686 = 103,686 : x
  2. Step 2: Convert to fraction form
    66,993.50/103,686 = 103,686/x
  3. Step 3: Cross multiply
    66,993.50x = 103,686 × 103,686
  4. Step 4: Simplify right side
    66,993.50x = 10,750,786,596
  5. Step 5: Solve for x
    x = 10,750,786,596/66,993.50
  6. Step 6: Final answer
    x = 160,475.07

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.