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Finding the Third Proportional to 37,520 and 79,260

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Solution

The third proportional to 37,520 and 79,260 is: 167,434.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,520 : 79,260 = 79,260 : x
  2. Step 2: Convert to fraction form
    37,520/79,260 = 79,260/x
  3. Step 3: Cross multiply
    37,520x = 79,260 × 79,260
  4. Step 4: Simplify right side
    37,520x = 6,282,147,600
  5. Step 5: Solve for x
    x = 6,282,147,600/37,520
  6. Step 6: Final answer
    x = 167,434.64

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.