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Finding the Third Proportional to 8,924 and 13,880

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Solution

The third proportional to 8,924 and 13,880 is: 21,588.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,924 : 13,880 = 13,880 : x
  2. Step 2: Convert to fraction form
    8,924/13,880 = 13,880/x
  3. Step 3: Cross multiply
    8,924x = 13,880 × 13,880
  4. Step 4: Simplify right side
    8,924x = 192,654,400
  5. Step 5: Solve for x
    x = 192,654,400/8,924
  6. Step 6: Final answer
    x = 21,588.35

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.