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Finding the Third Proportional to 13,259 and 19,375

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Solution

The third proportional to 13,259 and 19,375 is: 28,312.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,259 : 19,375 = 19,375 : x
  2. Step 2: Convert to fraction form
    13,259/19,375 = 19,375/x
  3. Step 3: Cross multiply
    13,259x = 19,375 × 19,375
  4. Step 4: Simplify right side
    13,259x = 375,390,625
  5. Step 5: Solve for x
    x = 375,390,625/13,259
  6. Step 6: Final answer
    x = 28,312.14

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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.