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Finding the Third Proportional to 17,880 and 26,212

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Solution

The third proportional to 17,880 and 26,212 is: 38,426.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,880 : 26,212 = 26,212 : x
  2. Step 2: Convert to fraction form
    17,880/26,212 = 26,212/x
  3. Step 3: Cross multiply
    17,880x = 26,212 × 26,212
  4. Step 4: Simplify right side
    17,880x = 687,068,944
  5. Step 5: Solve for x
    x = 687,068,944/17,880
  6. Step 6: Final answer
    x = 38,426.67

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.