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Finding the Third Proportional to 37,474.50 and 78,411

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Solution

The third proportional to 37,474.50 and 78,411 is: 164,065.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,474.50 : 78,411 = 78,411 : x
  2. Step 2: Convert to fraction form
    37,474.50/78,411 = 78,411/x
  3. Step 3: Cross multiply
    37,474.50x = 78,411 × 78,411
  4. Step 4: Simplify right side
    37,474.50x = 6,148,284,921
  5. Step 5: Solve for x
    x = 6,148,284,921/37,474.50
  6. Step 6: Final answer
    x = 164,065.83

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.