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Finding the Third Proportional to 14,375 and 31,423

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Solution

The third proportional to 14,375 and 31,423 is: 68,689.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,375 : 31,423 = 31,423 : x
  2. Step 2: Convert to fraction form
    14,375/31,423 = 31,423/x
  3. Step 3: Cross multiply
    14,375x = 31,423 × 31,423
  4. Step 4: Simplify right side
    14,375x = 987,404,929
  5. Step 5: Solve for x
    x = 987,404,929/14,375
  6. Step 6: Final answer
    x = 68,689.04

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.