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Finding the Third Proportional to 37,430 and 54,686

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Solution

The third proportional to 37,430 and 54,686 is: 79,897.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,430 : 54,686 = 54,686 : x
  2. Step 2: Convert to fraction form
    37,430/54,686 = 54,686/x
  3. Step 3: Cross multiply
    37,430x = 54,686 × 54,686
  4. Step 4: Simplify right side
    37,430x = 2,990,558,596
  5. Step 5: Solve for x
    x = 2,990,558,596/37,430
  6. Step 6: Final answer
    x = 79,897.37

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.