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Finding the Third Proportional to 18,159 and 25,708.50

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Solution

The third proportional to 18,159 and 25,708.50 is: 36,396.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,159 : 25,708.50 = 25,708.50 : x
  2. Step 2: Convert to fraction form
    18,159/25,708.50 = 25,708.50/x
  3. Step 3: Cross multiply
    18,159x = 25,708.50 × 25,708.50
  4. Step 4: Simplify right side
    18,159x = 660,926,972.25
  5. Step 5: Solve for x
    x = 660,926,972.25/18,159
  6. Step 6: Final answer
    x = 36,396.66

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.