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Finding the Third Proportional to 9,924 and 15,912

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Solution

The third proportional to 9,924 and 15,912 is: 25,513.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,924 : 15,912 = 15,912 : x
  2. Step 2: Convert to fraction form
    9,924/15,912 = 15,912/x
  3. Step 3: Cross multiply
    9,924x = 15,912 × 15,912
  4. Step 4: Simplify right side
    9,924x = 253,191,744
  5. Step 5: Solve for x
    x = 253,191,744/9,924
  6. Step 6: Final answer
    x = 25,513.07

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.