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Finding the Third Proportional to 7,520 and 15,361

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Solution

The third proportional to 7,520 and 15,361 is: 31,377.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,520 : 15,361 = 15,361 : x
  2. Step 2: Convert to fraction form
    7,520/15,361 = 15,361/x
  3. Step 3: Cross multiply
    7,520x = 15,361 × 15,361
  4. Step 4: Simplify right side
    7,520x = 235,960,321
  5. Step 5: Solve for x
    x = 235,960,321/7,520
  6. Step 6: Final answer
    x = 31,377.70

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.