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Finding the Third Proportional to 10,396 and 16,320

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Solution

The third proportional to 10,396 and 16,320 is: 25,619.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,396 : 16,320 = 16,320 : x
  2. Step 2: Convert to fraction form
    10,396/16,320 = 16,320/x
  3. Step 3: Cross multiply
    10,396x = 16,320 × 16,320
  4. Step 4: Simplify right side
    10,396x = 266,342,400
  5. Step 5: Solve for x
    x = 266,342,400/10,396
  6. Step 6: Final answer
    x = 25,619.70

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.