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Finding the Third Proportional to 15,620 and 23,817

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Solution

The third proportional to 15,620 and 23,817 is: 36,315.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,620 : 23,817 = 23,817 : x
  2. Step 2: Convert to fraction form
    15,620/23,817 = 23,817/x
  3. Step 3: Cross multiply
    15,620x = 23,817 × 23,817
  4. Step 4: Simplify right side
    15,620x = 567,249,489
  5. Step 5: Solve for x
    x = 567,249,489/15,620
  6. Step 6: Final answer
    x = 36,315.59

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.